Newton's Laws and Forces Review\

The inertia of an object is related to its:

• mass and speed.

• mass and force.

• mass only.

• speed only.

The term that means “all of the forces together on an object” is:

• normal force.

• net force.

• frictional force.

• weight.

On the surface of Earth, the force of gravity acting on one kilogram is:

• 22 pounds

• 9.8 pounds

• 2.2 newtons

• 9.8 newtons

The metric unit of force preferred by scientists is the:

• kilogram

• newton

• mima

• pound

Newton’s first law of motion is also known as:

• the law of universal gravitation

• the law of force pairs

• the law of unbalanced forces

• the law of inertia

If each of the barbells were pushed with a force of 100 newtons, which would be harder to move?

• The 10-kg barbell

• The 20-kg barbell.

• The 30-kg barbell

• They would all move equally

Weight is a force that depends on mass and

• friction.

• gravitational field strength.

• magnetism.

• energy conservation.

Which of the following is one of the Four Elementary Forces?

• Tension

• Vector

• Newton

• Gravity

A ball is rolling down a level sidewalk. As it roll, it slows down and stops. Why?

• A. Continued motion requires a force.

• B. Frictional force acts on the ball to stop it.

• C. The net force on a moving ball is always zero.

• D. The force that started it moving was taken away.

Changes in motion come from:

• unbalanced forces.

• balanced forces.

• mass.

• inertia.