Exam Prep #3 Flashcards
(8 cards)
1
Q
Work
A
Force applied over a distance; W = Fd cos(θ).
2
Q
Kinetic Energy
A
Energy of motion; KE = ½mv².
3
Q
Potential Energy
A
Stored energy due to position; PE = mgh.
4
Q
Mechanical Energy
A
Sum of kinetic and potential energy.
5
Q
Power
A
Rate of doing work; P = W/t.
6
Q
Efficiency
A
Useful energy output divided by energy input.
7
Q
Law of Conservation of Energy
A
Energy cannot be created or destroyed, only transformed.
8
Q
Joule
A
Unit of energy or work.
