The document defines light as a type of energy that is visible to the eye and can be emitted by some bodies. It discusses that we can see the shape, colour, and size of objects using light. Light sources include natural sources like the sun and artificial sources. Light propagates in straight lines in all directions at very fast speeds of 300,000 km/s through a vacuum. Materials can be transparent, translucent, or opaque. Properties of light discussed include reflection off mirrors, refraction through lenses, and dispersion of white light into the visible color spectrum.

1. LIGHT
SOUND

2. LIGHT
Definition:
SOUND

3. LIGHT
Definition:
SOUND

4. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
SOUND

5. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
SOUND

6. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
...-
SOUND

7. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
..-
SOUND

8. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.-
SOUND

9. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
SOUND

10. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
SOUND

11. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
...-
SOUND

12. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
..-
SOUND

13. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.-
SOUND

14. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
_____________
SOUND

15. LIGHT
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
SOUND

16. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
SOUND

17. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
...-
SOUND

18. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
..-
SOUND

19. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.-
SOUND

20. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
SOUND

21. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
_______Km/sg.(_____________)
SOUND

22. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND

23. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
SOUND

24. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
...-
SOUND

25. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
..-
SOUND

26. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.-
SOUND

27. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
SOUND

28. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
SOUND

29. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.....-
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
....-
SOUND

30. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
........-
SOUND

31. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.......-
SOUND

32. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
......-
SOUND

33. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.....-
SOUND

34. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
....-
SOUND

35. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
...-
SOUND

36. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
..-
SOUND

37. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.-
SOUND

38. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
SOUND

39. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
_________
_______
SOUND

40. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
SOUND

41. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
SOUND
Definition:

42. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
SOUND
Definition:

43. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate

44. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:

45. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.......-

46. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
......-

47. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.....-

48. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
....-

49. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
...-

50. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
..-

51. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.-

52. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY:

53. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound

54. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Propagation of sound:

55. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
.Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Propagation of sound:
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
..-

56. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Propagation of sound:
.- IT MOVES STRAIGHT
..-

57. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.-

58. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:

59. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
____m/sg.
(_______________________)

60. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(_______________________)

61. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)

62. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Other concepts:

63. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Other concepts:
.-
.-

64. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Other concepts:
.- ECHO:
.-

65. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Other concepts:
.- ECHO: is the
reflection of sound
produced by an
obstacle.
.-

66. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Other concepts:
.- ECHO: is the
reflection of sound
produced by an
obstacle.
.- NOISE:

67. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Other concepts:
.- ECHO: is the
reflection of sound
produced by an
obstacle.
.- NOISE: unpleasant
and irritating sound.

68. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Other concepts:
.- ECHO: is the
reflection of sound
produced by an
obstacle.
.- NOISE: unpleasant
and irritating sound.
Produces:
_________
_____________

69. LIGHT
Propagation of light:
Definition:
Type of energy
that some
bodies can emit
and is visible
by the eye.
We can see…
.- SHAPE
.- COLOUR
.- SIZE
Light sources:
.- NATURAL
.- ARTIFICIAL
.- The rest of bodies …
Reflect light
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- LIGHT SPEED (very fast)
300.000 Km/sg.(through vacuum)
SOUND
Definition:
Form of energy
produced by
objects when
they vibrate
Propagation of sound:
.- IT MOVES STRAIGHT
.- IN ALL DIRECTIONS
.- SOUND SPEED:
340 m/sg.
(It can’t propagate in vacuum)
Materials can be:
.- TRANSPARENT.
.- TRANSLUCENT
.- OPAQUE
Properties of light:
.- REFLECTION:
.- Plane mirrors:
.- Curved mirrors:
.- Concave (bigger)
.- Convex (smaller)
.- REFRACTION:
.- Convex lens
.- Concave lens
.- DISPERSION:
White light
7 colours
Characteristics:
.- INTENSITY:
.- LOUD
.- LOW
.- TONE:
.- HIGH
.- BASS or LOW
.- QUALITY: makes
possible to distinguish the
source of sound
Other concepts:
.- ECHO: is the
reflection of sound
produced by an
obstacle.
.- NOISE: unpleasant
and irritating sound.
Produces:
NOISE
POLLUTION

70. LIGHT
Propagation of light:
Definition:
SOUND
Definition:
Propagation of sound:
.-
.-
..-
.._______Km/sg.(_____________)
____ m/sg.
(_______________________)
Materials can be:
We can see…
...-
...Properties of light:
..- _____ mirrors:
.- ______mirrors:
..-
Light sources:
...- The rest of bodies …
_____________
Characteristics:
.- ___________:
...- _____:
...- _________:
Other concepts:
.-
:
.-
:
Produces:
..- _________ lens
.- _________ lens
._________
_______
________
______________