Chapter 1 - Forces

Front

What are balanced forces?

Back

When two forces are the same strength but act in opposite directions, they are called balanced forces.

Front

What is friction?

Back

A force that stops motion and creates heat is called friction.

Front

What do all magnets produce?

Back

All magnets produce a magnetic field.

Front

What happens when one force is stronger than another?

Back

The object will move.

Front

Why are bowling lanes coated with oil?

Back

To reduce friction, allowing the ball to slide more smoothly.

Front

What are unbalanced forces?

Back

Forces that are not equal in strength and cause an object to move.

Front

What is a magnetic field?

Back

An area around a magnet where magnetic forces can be felt.

Front

What is the effect of friction on motion?

Back

Friction slows down or stops the motion of objects.

Front

Can balanced forces cause motion?

Back

No, balanced forces do not cause motion; they keep an object at rest or moving at a constant speed.

Front

What is an example of unbalanced forces?

Back

A child pushing a swing while another child pulls it in the opposite direction.