Physics Fast Facts: Work and Energy

Front

What is energy stored by a spring called?

Back

Elastic potential energy

Front

What type of energy is possessed by any moving object?

Back

Kinetic energy

Front

How is power defined in terms of energy and time?

Back

Power is defined as energy used per second, or work done per second.

Front

Is work a vector quantity? (True/False)

Back

False

Front

What is the formula for kinetic energy?

Back

KE = 1/2 mv²

Front

What is the unit of work in the International System of Units (SI)?

Back

Joule (J)

Front

What is the relationship between work and energy?

Back

Work is done when energy is transferred from one system to another.

Front

What is the formula for calculating work done?

Back

Work = Force x Distance x cos(θ) where θ is the angle between the force and the direction of motion.

Front

What is gravitational potential energy?

Back

Energy stored in an object due to its height above the ground, calculated as PE = mgh.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.