Front

What is the primary purpose of simple machines?

Back

To make work easier.

Front

How do simple machines affect the amount of force needed to do work?

Back

They can change the amount of force needed.

Front

What type of simple machine is a lever?

Back

A simple machine that can lift or move loads.

Front

What is an example of a simple machine that helps in lifting heavy objects?

Back

Lever.

Front

What simple machine consists of a circular object that turns around a central point?

Back

Wheel and axle.

Front

How does a wheel and axle help in moving objects?

Back

It reduces friction and allows for easier movement.

Front

What type of simple machine is a catapult classified as?

Back

A lever.

Front

What is the mechanical advantage of using simple machines?

Back

It allows a smaller input force to lift a larger load.

Front

Can simple machines change the direction of force?

Back

Yes, they can change the direction of force applied.

Front

What is an inclined plane?

Back

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