Work Energy Power

Front

What is the formula for total mechanical energy of an object just before it hits the ground?

Back

Total mechanical energy = (1/2)mv² + mgh

Front

What does Gravitational Potential Energy (GPE) equal?

Back

GPE = mgh

Front

Can kinetic energy be negative?

Back

No, kinetic energy can be positive or zero, but never negative.

Front

What type of quantity is power?

Back

Power is a scalar quantity.

Front

How do you calculate work done by a force?

Back

Work = |F||Δx|cosθ

Front

What is the unit of work?

Back

The unit of work is Joules (J).

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in its energy.

Front

What is the formula for kinetic energy?

Back

Kinetic Energy (KE) = (1/2)mv²

Front

What is the formula for calculating power?

Back

Power = Work / Time (P = W/t)