class 1 lever q answers - anna

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-----------------------------------FIRST CLASS LEVERS - QUIZ-----------------------------------------------------------


ANSWERS:

1. A first class lever has the ___in the middle.

a) load
b) effort
c) fulcrum ✔

2. Which of the following is an example of a class-one lever?

a) tweezers
b) base-ball bat
c) pliers ✔
d) wheel-barrow

3. As the load moves farther from the fulcrum, the effort needed to lift the load...

a) decreases
b) increases ✔
c) stays the same

4. What is the benefit obtained by using a lever called?

a) effort
b) work
c) advantage -✔
d) Newton