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Physics olympics week 4

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Physics Olympics. Define work. What is the formula for work? What are the units of work? ... Physics Olympics. Define power. What is the formula for power? What ... – PowerPoint PPT presentation

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Title: Physics olympics week 4


1
Physics olympicsweek 4
2
Physics Olympics
  • What is the net force necessary for a 1.6 x 103
    kg automobile to accelerate forward a 2.0 m/s/s?
  • Define weight. What is the formula for weight?
  • Which one, mass or weight, would change on a
    different planet?
  • What is numerical value for acceleration due to
    gravity?
  • What is terminal velocity?
  • What is Newtons third law of motion?

3
Physics Olympics
  • Define work.
  • What is the formula for work?
  • What are the units of work?
  • A crane uses an average force of 5200 N to life a
    girder 25m off the ground. How much work does
    the crane do on the girder?

4
Physics Olympics
  • Define power.
  • What is the formula for power?
  • What is the unit for power?
  • Using a jack, a mechanic does 5350J of work to
    lift a car 0.5 m in 50 seconds. What is the
    mechanics power output?

5
Physics Olympics
  • Define mechanical advantage.
  • What are the units of mechanical advantage?
  • What are the two basic formulas for mechanical
    advantage?
  • Calculate the mechanical advantage of a ramp that
    is 6.0 m long and 1.5 m high.

6
Physics Olympics
  • List the 6 simple machine.
  • Which 3 machines belong in the lever family?
  • Which 3 machines belong in the inclined plane
    family?
  • How can you tell if a lever is a first, second or
    third class lever?
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