Elliot's Levers quiz!!!

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The Lever
Quiz
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  1. what is a lever?
  2. why do people use levers?
  3. which is longer on a class 2 lever, the load arm or effort arm?
  4. which lever always has an Ideal Mechanical Advantage less than one?
  5. Which lever can have an Ideal mechanical advantage less than one, more than one and equal to one?
  6. how can you lift something easier on a class one lever?
  7. what class of lever is a baseball bat?
  8. what class of lever is a wheelbarrow?
  9. what class of lever is a see-saw/ teeter-totter?


Answers

  1. A rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
  2. People use levers to make stuff easier to lift
  3. Effort arm
  4. Class 3 lever
  5. Class 1 lever
  6. Move the load closer to the fulcrum or make the effort arm longer
  7. Class 3 lever
  8. Cass 2 lever
  9. Class 1 lever