Energy, Work and Power

Front

What is the formula to calculate work done?

Back

Work = Force x Distance

Front

If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?

Back

17 m

Front

What type of energy is associated with an object's position or condition?

Back

Potential energy

Front

What is radiant energy?

Back

Radiant energy is energy that travels by waves or particles, particularly electromagnetic radiation such as light.

Front

How do you calculate the distance moved if you know the work done and the force applied?

Back

Distance = Work / Force

Front

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

Back

Joule (J)

Front

What is the difference between kinetic energy and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position.

Front

What is the formula for calculating potential energy?

Back

Potential Energy = mass x gravity x height (PE = mgh)

Front

If a weightlifter lifts two 300 Newton weights 1.5 meters off the ground, how much work has she done?

Back

900 J

Front

What is the definition of power in physics?

Back

Power is the rate at which work is done or energy is transferred.