AP Energy, Work, and Power

Front

What does the Law of Conservation of Energy state?

Back

The total amount of energy in a closed system will always stay the same.

Front

How do you calculate power?

Back

Power is calculated as work done divided by time taken (P = W/t).

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically calculated as PE = mgh.

Front

What type of system is the law of conservation of energy defined for?

Back

The law of conservation of energy is defined for a closed, isolated system.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv².

Front

What is the formula for calculating work?

Back

Work is calculated as the force applied multiplied by the distance moved in the direction of the force (W = Fd).

Front

What is the unit of power?

Back

The unit of power is the Watt (W), which is equivalent to one Joule per second.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy based on position, while kinetic energy is the energy of motion.

Front

What is an example of elastic potential energy?

Back

Elastic potential energy is stored in objects that can be stretched or compressed, like a spring.

Front

What is the formula for gravitational potential energy?

Back

Gravitational potential energy is calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.