Simple Machines Review

Front

What do wheels do to the amount of friction?

Back

Wheels reduce the amount of friction, making an object move with less force.

Front

Which simple machine moves objects by rolling them using two circular objects connected by a rotating role?

Back

Wheel and axle.

Front

What do simple machines do to work?

Back

Simple machines make work easier.

Front

What is a force?

Back

A force is a push or a pull.

Front

What is a screw?

Back

A simple machine that is made up of an inclined plane wrapped around a cylinder, often used to hold things together.

Front

What is a lever?

Back

A simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum.

Front

What is a pulley?

Back

A simple machine that uses a wheel and a rope to lift or lower objects.

Front

What is an inclined plane?

Back

A flat surface that is tilted at an angle to help raise or lower objects.

Front

What is a wedge?

Back

A simple machine that is a piece of material with a sharp edge, used to split or cut objects apart.

Front

What is mechanical advantage?

Back

The ratio of the output force to the input force in a machine.