Simple Machines

Front

What is work in physics?

Back

Work is done whenever a force moves an object a distance. It is calculated as Work = Force x Distance.

Front

What is a simple machine?

Back

A simple machine is a device that makes work easier by allowing us to push or pull in a more efficient way.

Front

What is a wedge?

Back

A wedge is a simple machine that splits an object apart, such as a knife or an axe.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help lift objects more easily.

Front

What is a lever?

Back

A lever is a simple machine that consists of a bar that pivots on a fixed point called a fulcrum.

Front

What is a fulcrum?

Back

A fulcrum is the point on which a lever pivots.

Front

How do you calculate work?

Back

Work is calculated using the formula: Work = Force x Distance.

Front

If no movement occurs, how much work is done?

Back

If no movement occurs, the work done is 0 Joules, regardless of the force applied.

Front

What is the unit of work?

Back

The unit of work is Joules (J).

Front

If a force of 60 N is applied over a distance of 2 m, how much work is done?

Back

Work = Force x Distance = 60 N x 2 m = 120 J.