Force and Net Force

Front

What happens when the sum of the forces equals zero?

Back

The forces are said to be in balance.

Front

What is the net force?

Back

The combination of all forces acting on an object.

Front

What does unbalanced forces mean?

Back

Forces acting on an object that combine and form a net force that is not zero.

Front

What is the direction of the net force if it is unbalanced to the right?

Back

The net force is directed to the right.

Front

What is an example of balanced forces?

Back

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

Front

What is an example of unbalanced forces?

Back

A person pushing a swing, causing it to move.

Front

What is the effect of unbalanced forces on an object?

Back

They cause the object to accelerate in the direction of the net force.

Front

What is the unit of force?

Back

Newton (N).

Front

What is the relationship between mass and force?

Back

Force equals mass times acceleration (F = ma).

Front

What is friction?

Back

A force that opposes motion between two surfaces that are in contact.