Newton's Law of Motion Video

What does Newton's first law of motion state about an object at rest?

• It will move in a circular path.

• It will remain at rest unless a force acts on it.

• It will start moving on its own.

• It will change its direction automatically.

According to Newton's second law, what happens when the same force is applied to two objects of different masses?

• Both objects move the same distance.

• The heavier object moves faster.

• The lighter object moves further.

• Neither object moves.

Which of the following best describes Newton's third law of motion?

• Objects at rest stay at rest.

• Objects in motion stay in motion.

• For every action, there is an equal and opposite reaction.

• Heavier objects require more force to move.

What force causes a rocket to launch upward according to Newton's third law?

• The upward force of the atmosphere.

• The force of gravity.

• The force of air resistance.

• The downward force of expelled gases.

How do airbags help reduce injuries during a car crash?

• They increase the speed of the car.

• They apply an unbalanced force to the car.

• They slow down the person gradually.

• They stop the car immediately.