Net force and Change in Motion 21

Front

What is net force?

Back

The net force is the overall force acting on an object when all the individual forces are combined. It determines the object's motion.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

What is gravity?

Back

Gravity is the force that pulls objects toward the center of the Earth. It gives weight to physical objects.

Front

How do you calculate net force when two forces act in the same direction?

Back

Add the magnitudes of the forces together.

Front

How do you calculate net force when two forces act in opposite directions?

Back

Subtract the smaller force from the larger force and the direction of the larger force will be the direction of the net force.

Front

What happens to an object at rest when the net force is zero?

Back

The object will remain at rest.

Front

What happens to a moving object when the net force is zero?

Back

The object will continue to move at a constant velocity.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

If a person pushes a box with a force of 10 N to the right and another person pushes with 5 N to the left, what is the net force?

Back

The net force is 5 N to the right.

Front

What is the effect of increasing friction on motion?

Back

Increasing friction makes it harder for an object to move, potentially slowing it down or stopping it.