Work & Energy Flashcards
1
Q
In which case does gravity do the most work?
A
Gravity is always down.
2
Q
What is the value of work done by the normal force when a box is sliding down a ramp?
A
0
3
Q
What is the value of work done by the normal force when a dropped box lands on the floor (and compresses slightly)?
A
<0
4
Q
What is the value of the work done by the normal force when a spring launches a box up?
A
> 0
