10
lesson pretestMultiple Choice

Pretest

Question 10 • Physical Science

Which best explains what will happen if Sharilyn unscrews a bolt with a short handled wrench?

Answer
A
The bolt will be harder to unscrew because it is closer to the fulcrum and the mechanical advantage will be reduced.
B
The bolt will be easier to unscrew because it is closer to the fulcrum and the mechanical advantage will be reduced.
C
The bolt will be easier to unscrew because it is farther from the fulcrum and the mechanical advantage will be greater.
D
The bolt will be harder to unscrew because it is farther from the fulcrum and the mechanical advantage will be greater.