Front

What is a simple machine?

Back

A simple machine is a mechanical device that changes the direction or magnitude of a force. Examples include levers, pulleys, and inclined planes.

Front

What are the six types of simple machines?

Back

The six types of simple machines are lever, pulley, inclined plane, wedge, screw, and wheel and axle.

Front

What is the purpose of a pulley?

Back

A pulley is used to change the direction of the applied force when lifting an object.

Front

What is a lever?

Back

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

Front

What is a fulcrum?

Back

A fulcrum is the fixed point around which a lever rotates.

Front

What is a wedge?

Back

A wedge is a simple machine that is used to separate two objects or portions of an object, often by applying force to the wide end.

Front

What is the mechanical advantage of a simple machine?

Back

Mechanical advantage is the ratio of the output force exerted by the machine to the input force applied to it.

Front

Can a simple machine change the amount of work done?

Back

No, a simple machine cannot change the amount of work done; it can only change the direction or distance over which the force is applied.

Front

What is an example of a screw?

Back

A screw is a simple machine that converts rotational motion into linear motion, such as a jar lid.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help raise or lower objects with less effort.