Work: Review Flashcards
1
Q
Law of Conservation of Energy
A
Energy can not be created nor destroyed
2
Q
KE =
A
1/2mv^2
3
Q
PE =
A
mgΔy
4
Q
Conservative forces
A
the work done on the object is independent of the path taken
5
Q
Conservative force example
A
Gravity
6
Q
Nonconservative forces
A
the work done on the object depends on the path taken
7
Q
Nonconservative force example
A
Sliding friction
8
Q
Power
A
The rate at which work is done
9
Q
P =
A
ΔE/Δt
10
Q
What can P also equal
A
P=Fv
11
Q
A bulldozer and a smal boy can do the same amount of _____, but the bulldozer does it with more _________.
A
Work, power
12
Q
Potential energy from a sping
A
Us = 1/2kx2
13
Q
Kinetic energy
A
Energy associated with the motion of an object
14
Q
Potential energy
A
Energy associated with the position of an object
15
Q
W =
A
Wnet = Fnet x d
