Simple Machines

Front

What is a wedge?

Back

A wedge is a simple machine that is used to split or cut objects apart. It has a thick end and a thin edge, like an axe.

Front

What is a lever?

Back

A lever is a simple machine that helps lift or move heavy objects. It consists of a bar that pivots on a point called the fulcrum.

Front

What is a screw?

Back

A screw is a simple machine that is an inclined plane wrapped around a rod. It is 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). It helps in moving heavy objects easily.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle. It helps in raising or lowering objects with less effort.

Front

Can you give an example of a wedge?

Back

An example of a wedge is a knife or an axe.

Front

Can you give an example of a lever?

Back

An example of a lever is a seesaw or a crowbar.

Front

Can you give an example of a screw?

Back

An example of a screw is a jar lid or a wood screw.

Front

Can you give an example of a wheel and axle?

Back

An example of a wheel and axle is a bicycle or a doorknob.

Front

What is the purpose of a pulley?

Back

A pulley is a simple machine that helps lift heavy objects by changing the direction of the force applied.