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Quiz

This quiz will test your knowledge on levers
Get out a pen and paper and write out the numbers 1-8.

1. How many classes of levers are there?

2. If the effort arm is longer then the load arm what is the mechanical advantage of the lever?

3. Which is the one class of lever where the mechanical advantage is always less than one?

4. If there is a lever where the effort is closer to the fulcrum then the load, is the mechanical advantage greater than, less than or equal to 1?

5. Which of the following is a second class lever?
  • Tweezers
  • Wheelbarrow
  • Baseball Bat

6. Which of the following is a third class lever?
  • Stapler
  • See Saw
  • Scissors

7. Where is the friction on a lever?

8. Why are levers generally more efficient to use than inclined planes?



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