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Physics day1

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PSHS 3rd Year (Batch 2013)
Physics Day 1 Tutorial Class
Topics: Goal-setting, Diagnostic Test answers
Test topic: Physics terms, Significant Figures, Uniform Linear Motion, Uniformly Accelerated Motion, Projectile Motion

Publicado en: Educación, Tecnología
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Physics day1

  1. 1. PSHS 3RD YEAR PHYSICS<br />SESSION 1<br />
  3. 3. 1. WHAT ARE YOUR GOAL GRADES?<br />
  4. 4. How to compute for your tentative grade?<br />
  6. 6. 3. DO YOU FOLLOW YOUR SCHEDULE? <br />
  7. 7. HOW MUCH DO YOU REALLY WANT TO IMPROVE YOUR GRADES?<br />1. Define your goals.<br />2. Make a plan.<br />4. Revise.<br />3. Follow your plan.<br />
  8. 8. THE KEY TO SUCCESS<br /># of CORRECT<br /> ITEMS<br />BATTING AVERAGE<br />6<br />Every 5 questions,<br /> 3 correct answers.<br />Student A<br />2 days=<br />6<br />3 days=<br />Every 3 questions, <br />2 are correct.<br />Student B<br />10<br />10 days=<br />Every 10 questions, <br />1 is correct.<br />Student C<br />PERSISTENCE!<br />
  9. 9. The key to doing well in 3rd Yr is to PRACTICE. <br />Change your 1st /2nd Yr Strategy!<br />
  10. 10. Let’s see what we remember in physics…<br />
  11. 11. Diagnostics - Answers<br />E. MODEL<br />C. THEORY<br />1. A kind of picture or analogy that helps to describe a phenomenon in terms of something we already know.<br />2. A broader and more detailed picture that aims to explain and order observations that has been tested and proven through experimentation.<br />
  12. 12. Diagnostics - Answers<br />4. Refers to the type of units or base quantities that make up a quantity. For example, for area, it is length. For velocity, we have length and time.<br />3. Refers to the repeatability of the same measurement using a given instrument.<br />D. PRECISION<br />F. DIMENSION OF A QUANTITY<br />
  13. 13. Diagnostics - Answers<br />6. Refers to how close a measurement is to the true value.<br />B. ACCURACY<br />A. LAW<br />5. Concise but general statements about how nature behaves, found experimentally valid over a wide range of observed phenomena. They usually take the form of a relationship or equation.<br />
  14. 14. 7. The age of the universe is thought to be about 14 billion years. Assuming two significant figures, write this in powers of ten in (a) years ________<br />
  15. 15. 7. The age of the universe is thought to be about 14 billion years. Assuming two significant figures, write this in powers of ten in (b) seconds ________<br />Dimensional Analysis<br />
  16. 16. STEP 1: Convert all measurements to the same unit.<br />METER<br />8. Express the following sum with the correct significant figures: <br />
  17. 17. 8. (cont’d)<br />STEP 2: Get the sum before converting to significant figures. Why?<br />To get the most ACCURATE result.<br />
  18. 18. 8. (cont’d)<br />STEP 3: After adding, express the sum in significant figures.<br />SIGNIFICANT FIGURES:<br /> Rule for addition / subtraction:<br />Among the given data, <br />follow the LEAST NUMBER OF DECIMAL PLACES.<br />3 significant figures. Therefore,<br />3.759  3.76 m<br />
  19. 19. 8. In summary<br />1. Convert all measurements to the same unit. (METERS, SECONDS, KILOGRAMS)<br />2. Get the sum before converting to significant figures. <br />3. After adding, express the sum in significant figures.<br />
  20. 20. 9. A car traveling 88 km/h is 110 m behind a truck traveling 75 km/h. How long will it take the care to reach the truck?<br />
  21. 21. 10. A stone is thrown vertically upward with a speed of 18.0 m/s. (a.) How fast is it moving when it reaches a height of 11.0m?<br />
  22. 22. 1. READ CAREFULLY. CHOOSE the object/s you are going to analyze.<br />DRAW A CAREFUL DIAGRAM showing what is happening to the object.<br />CHOOSE an origin and XY-COORDINATE SYSTEM.<br />LIST the known and unknown quantities.<br />THINK before jumping into the equations. APPLY the RELEVANT EQUATIONS.<br />REFLECT on your answer.<br />PROBLEM-SOLVING TIPS<br />
  23. 23. 1. Acceleration and velocity are always in the same direction.<br />FALSE<br />2. An object thrown upward has zero acceleration at the highest point.<br />FALSE<br />True or False?<br />
  24. 24. 10. (b.) How long is required to reach this height, 11.0m?<br />
  25. 25. 10. (c.) Why are there two answers to 10b. ?<br />ANSWER:<br />There are two times when the ball is at a height of 11.0m from the reference point. <br />
  26. 26. 11. A projectile is fired with an initial speed of 65.2 m/s at an angle of above the horizontal on a long flat firing range. Determine: (a.) the maximum height reached by the projectile.<br />
  27. 27.
  28. 28. 11. (b.) the total time in the air.<br />
  29. 29. 11.( c.)the total horizontal distance covered.<br />
  30. 30. 11.(d.) the velocity of the projectile 1.50s after firing.<br />
  31. 31. SOME TIPS<br />Get a support team.<br />FAMILY, FRIENDS & TEACHERS.<br />Make your books and your calculator your friends! <br /> Make good use of them:<br /> READ YOUR BOOKS.<br /> KNOW HOW TO USE YOUR SCI CAL.<br /> Take care of them.<br />