Energy, Work and Power

Front

Energy from a compressed spring would be an example of...

Back

Elastic energy.

Front

What is the SI unit for power?

Back

Watts.

Front

A roller coaster at the top of a hill has only what type of energy?

Back

Only potential energy.

Front

How much power is required if two workers use 100 N of force to move a sofa 2 meters in 2 seconds?

Back

100 watts.

Front

If a 100 N force is applied to move an object 5 meters in 10 seconds, how much power is done?

Back

50W.

Front

What is the formula for calculating power?

Back

Power = Work / Time.

Front

Define work in the context of physics.

Back

Work is done when a force causes displacement of an object.

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or configuration.

Front

What is the relationship between work and energy?

Back

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