Net Force and Free-Body Diagrams

Front

What is the force that opposes the motion of a rolling ball?

Back

Friction

Front

If a box has a 5-N force acting to the right and a 12-N force acting upward, what is the magnitude of the net force acting on it?

Back

13 N

Front

What is the force that acts perpendicular to the surface an object is resting on?

Back

Normal force

Front

If a box has a 50 N force to the right, a 30 N force to the left, and a 20 N force to the right, what is the net force on the box?

Back

40 N to the right

Front

What is the net force acting on an object if two forces of 6 N to the left and 10 N to the right are applied?

Back

4 N to the right

Front

What is the definition of net force?

Back

The vector sum of all forces acting on an object.

Front

What is the role of free-body diagrams in physics?

Back

To visually represent the forces acting on an object.

Front

What happens to the net force if all forces acting on an object are balanced?

Back

The net force is zero.

Front

What is the effect of an unbalanced force on an object?

Back

It causes the object to accelerate in the direction of the net force.

Front

How do you calculate the net force when multiple forces are acting in the same direction?

Back

Add the magnitudes of the forces together.