Balanced and unbalanced forces

Front

What are balanced forces?

Back

Forces that are equal in strength and opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Forces that are not equal in strength, causing a change in motion.

Front

What is a force?

Back

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

Front

What happens when the net force on an object is zero?

Back

The object remains still or continues to move at a constant speed.

Front

What is an example of balanced forces?

Back

Two people pushing a car in opposite directions with equal strength.

Front

What is an example of unbalanced forces?

Back

A soccer ball being kicked, where one kick is stronger than the other.

Front

How do balanced forces affect motion?

Back

They do not change the motion of an object.

Front

How do unbalanced forces affect motion?

Back

They cause an object to start moving, stop moving, or change direction.

Front

If Leah's soccer ball goes farther than Seth's, what can we conclude about their forces?

Back

Leah kicked the soccer ball with more force than Seth.

Front

What is the net force when two equal forces act in opposite directions?

Back

The net force is zero.