Science 8 Unit 5 Vocab Check

Front

What is power?

Back

Power is how quickly work is done.

Front

What is work in physics?

Back

Work is done when a force causes an object to move in the same direction that the force is applied.

Front

What is efficiency?

Back

Efficiency is the ratio of output work to input work.

Front

What is a simple machine?

Back

A simple machine is a machine that does work with only one movement.

Front

What is output force?

Back

Output force is the force that the machine applies.

Front

What is energy?

Back

Energy is the ability to do work.

Front

What is input force?

Back

Input force is the force applied to a machine.

Front

What is the relationship between work and energy?

Back

Work is a transfer of energy that occurs when a force is applied to an object.

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

What is gravitational force?

Back

Gravitational force is the force of attraction between two masses.