Physics (Chapter 8: Potential Energy)

What is the sign for Potential Energy?

What does Gravitational Potential Energy account for?

What does Elastic Potential Energy account for?

What is the Change in Gravitational Potential Energy?

• mgy

• -W

• +W

• -mgy

What is the change in Potential Energy for an object being raised or lowered?

• -mgy

• +mgy

• cosmgy

• -W

What is a Conservative Force?

• forces for with W(1) = -W(2) is always True

• forces for with W(1) = -W(2) is False

Examples of Conservative Forces and Nonconservative Forces?

Groups:

(a) Conservative Force

,

(b) Nonconservative Force

• Drag Force

• Gravitational force

• Spring Force

• Kinetic friction force