Simple and Compound Machines Flashcard

Front

What is work in physics?

Back

Work is defined as force applied through a distance.

Front

What is a compound machine?

Back

A compound machine is a combination of two or more simple machines.

Front

Give an example of a lever.

Back

An example of a lever is a rake.

Front

What is the formula for calculating work?

Back

Work = Force x distance.

Front

What happens to mechanical energy in a closed system?

Back

In a closed system, mechanical energy remains constant.

Front

What is a simple machine?

Back

A simple machine is a device that changes the direction or magnitude of a force.

Front

List the six types of simple machines.

Back

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

Front

How does a lever work?

Back

A lever works by using a fulcrum to amplify force, allowing a smaller force to lift a heavier load.

Front

What is the mechanical advantage of a machine?

Back

Mechanical advantage is the ratio of the output force to the input force.

Front

What is an example of a wheel and axle?

Back

An example of a wheel and axle is a doorknob.