A net force is applied to a moving object. Which statement best describes the effect of the force?

Question

1. The force will cause the object to come to a stop.
2. The force will cause the speed of the object to increase.
3. The force will cause a change in the momentum of the object.
4. The force will cause a change in the direction of the object.

Answer 1

The best statement that describes the effect of the net force applied to a moving object is:

3. The force will cause a change in the momentum of the object.

According to Newton's second law, the net force applied to an object causes an acceleration, which changes its velocity and, consequently, its momentum. Momentum is the product of mass and velocity, so any change in velocity (whether in speed or direction) will result in a change in momentum.