5.7A Balance and Unbalance forces

Front

What is a force?

Back

A force is a push or pull acting on an object.

Front

What happens when two teams pull with the same amount of force?

Back

They will not move at all.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no movement.

Front

What are unbalanced forces?

Back

Forces that are not equal, causing an object to move in the direction of the greater force.

Front

What is net force?

Back

The sum of all forces acting on an object.

Front

If two forces of 30 N left and 25 N right are acting on an object, what is the net force?

Back

5 N left.

Front

What is an example of a balanced force?

Back

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

Front

What is an example of an unbalanced force?

Back

A child pushing a swing while another child is pulling it.

Front

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

Back

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

Front

What is contact force?

Back

A force that requires physical contact between two objects.