Simple Machines

Front

What is a pulley?

Back

A pulley is a grooved wheel with a rope running along the groove, used to lift heavy objects.

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, like stairs.

Front

What is a wedge?

Back

A wedge is a simple machine that is thick at one end and tapers to a thin edge, used to split or cut objects.

Front

What is a screw?

Back

A screw is a simple machine that consists of a spiral inclined plane wrapped around a cylinder, used to hold things together or lift objects.

Front

What is a wheel and axle?

Back

A wheel and axle is a simple machine that consists of a wheel attached to a rod (axle), used to make moving heavy objects easier.

Front

What is the purpose of simple machines?

Back

Simple machines make work easier by allowing us to apply force in a more effective way.

Front

Can you give an example of a pulley in everyday life?

Back

An example of a pulley is a flagpole, where the flag is raised and lowered using a rope.

Front

How do inclined planes help us?

Back

Inclined planes help us lift heavy objects by reducing the amount of force needed to lift them.

Front

What is an example of a wedge?

Back

An example of a wedge is a knife, which is used to cut food.

Front

What is a real-life example of a screw?

Back

A real-life example of a screw is a lightbulb, which is screwed into a socket.