Physical Science: Forces and Motion

Physical Science: Forces and Motion

Anytime there is a change in motion, force is the responsible party. It has to overcome inertia to act on an object. Inertia keeps an object either sitting still or moving at a constant speed.

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How confident are you answering questions pertaining to Forces and Motion?

Multiple Choice

What would you need to move an immobile soccer ball?

• friction

• force

• gravity

• inertia

Multiple Choice

Which of these is an example of force?

• pulling a casserole out of the oven

• watching a slice of bread in a toaster

• listening to your school chorus

• taste testing soup cooking on the stovetop

Multiple Choice

Which object would require the most amount of energy, or force, to set it into motion?

• a small plant

• a refrigerator

• a school bus

• a bowling ball

Multiple Choice

What is the name of the unit you use to measure force?

• neutron

• newton

• nucleus

• norton

Multiple Choice

What is an example of friction?

• slipping on a patch of ice

• dropping a book on the floor

• working on a computer

• wind blowing against you as you walk

Multiple Choice

How is velocity different from speed?

• Velocity is when an object goes in reverse.

• Velocity is the direction an object moves in, and it has nothing to do with speed.

• Velocity is speed and direction together.

• Velocity is not at all different from speed

Multiple Choice

What does friction do to a moving object?

• makes it rise

• slows it down

• speeds it up

• all the above

Multiple Choice

Your friend kicks a soccer ball, and it stops a few feet from you. What needs to happen to it in order for it to return to your friend?

• Friction has to be applied to the ball.

• Inertia has to be applied to the ball.

• Speed has to be applied to the ball.

• Force has to be applied to the ball.

Multiple Choice

What is the relationship between heavy objects and inertia?

• Heavy objects have more inertia.

• Heavy objects have less inertia.

• Heavy objects have no inertia.

• Only heavy objects have inertia.

Multiple Choice

What does the second part of Newton’s first law say about objects at rest?

• They will stay at rest unless an outside force makes them move.

• If they are heavy, they will stay at rest, but if they are light, they will move.

• They have more inertia than objects in motion.

• They cannot move unless they have a lot of friction.

Multiple Choice

The rate at which an object’s velocity changes is called what?

• inertia

• acceleration

• completion

• actualization

Multiple Choice

What determines an object’s mass?

• amount of friction

• amount of matter

• amount of gravity

• amount of speed

Multiple Choice

What happens when two objects, such as a baseball and a bat, collide?

• One remains still while the other one moves in the same direction.

• They hit each other with unequal force in opposite directions.

• They hit each other with the same force in the same direction.

• They hit each other with the same force in opposite directions.

Multiple Choice

What is gravitational force?

• the force of attraction between any two objects

• the force that keeps people from moving

• the force that makes inert objects start moving

• the only force that changes an object’s velocity

Multiple Choice

The Earth's gravity actually pulls things towards the center of the Earth and not up or down.

• True

• False