Force and Simple Machines Review

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help lift heavy objects.

Front

What is a wedge?

Back

A wedge is a simple machine that is used to split or cut objects apart.

Front

What is a pulley?

Back

A pulley is a simple machine that uses a wheel and a rope to lift heavy objects.

Front

What is a screw?

Back

A screw is a simple machine that is an inclined plane wrapped around a cylinder, used to hold things together.

Front

What are the two types of forces?

Back

The two types of forces are contact forces (like pushing) and non-contact forces (like gravity).

Front

How does gravity affect objects?

Back

Gravity pulls objects toward the Earth, giving them weight.

Front

What is the purpose of simple machines?

Back

Simple machines make work easier by allowing us to apply less force to move objects.

Front

Can you name some examples of simple machines?

Back

Examples of simple machines include levers, pulleys, inclined planes, wedges, screws, and wheels and axles.

Front

What is a lever?

Back

A lever is a simple machine that consists of a bar that pivots on a fixed point called a fulcrum.