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Mechanical Advantage and Efficiency of Machines
Mechanical Advantage   ,[object Object],[object Object],[object Object]
Increasing Force ,[object Object],[object Object],[object Object],[object Object]
Without the mechanical advantage of the can opener, opening the can would be very difficult.
Increasing Distance   ,[object Object],[object Object],[object Object],[object Object],[object Object]
You need to apply a lot of force to the spoon in order to hold it, but the spoon applies little force to hold the cereal. You move the spoon a short distance in the cereal but the spoon moves the cereal a great distance to your mouth.
Changing Direction ,[object Object],[object Object],[object Object]
Practice Problems ,[object Object],[object Object]
Efficiency of Machines ,[object Object],[object Object],[object Object]
Friction and Efficiency   ,[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]
[object Object],[object Object]
Real and Ideal Machines   ,[object Object],[object Object]
[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]

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Mechanical advantage and efficiency

  • 1. Mechanical Advantage and Efficiency of Machines
  • 2.
  • 3.
  • 4. Without the mechanical advantage of the can opener, opening the can would be very difficult.
  • 5.
  • 6. You need to apply a lot of force to the spoon in order to hold it, but the spoon applies little force to hold the cereal. You move the spoon a short distance in the cereal but the spoon moves the cereal a great distance to your mouth.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.