Chapter 10: Forces and Motion Practice Test

What does Newton's First Law of Motion state?

• An object in motion will change its velocity if a force acts upon it.

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

• An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• The acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass.

Newton's Third Law of Motion can be observed when:

• A person walks; their feet push back on the ground and the ground pushes forward on their feet.

• A ball dropped from a height falls to the ground.

• A car accelerates on the highway.

• Ice melting in a glass of water.

What is inertia?

• The force that keeps an object moving in a circle.

• The tendency of an object to resist changes in its state of motion.

• The rate of change of velocity of an object.

• The force that pulls objects toward the center of the Earth.

.Which formula represents Newton's Second Law?

If you were in space and pushed a ball away from you, what would happen to the ball and you?

• Only the ball would move.

• Only you would move in the opposite direction.

• Both you and the ball would move in opposite directions.

• Neither you nor the ball would move.

What does it mean when we say that an object has more inertia?

• It is harder to stop or start moving.

• It can move faster.

• It is lighter.

• It can float in water.

The amount of gravity an object has is based off its

• Mass

• Friction

• Movement

• Weight

How does mass affect the acceleration of an object, according to Newton's Second Law of Motion?

• The greater the mass, the greater the acceleration.

• The greater the mass, the less the acceleration.

• Mass does not affect acceleration.

• The less the mass, the less the acceleration.

Which of the following scenarios is a practical application of Newton's Third Law of Motion?

• A boat floating on water.

• A rocket launching into space.

• A ball rolling down a slope.

• A magnet attracting a piece of iron.

This type of friction has the least amount of resistance.

• Fluid Friction

• Rolling Friction

• Sliding Friction

• Static Friction

• They are all the same.