Chapter 2: Force and Motion Review

Beside strength what does every force have?

• gravity
• direction
• friction
• none of the above

A ball is rolled across 4 different surfaces, which would cause the most amount of friction?

• tile floor
• paved road
• grassy hill
• cement sidewalk

How do magnetic forces act on different objects?

• they pull objects
• they push objects away
• they push and pull objects
• magnetic forces do nothing to objects

What does it mean for an object to accelerate?

• An objects speed and direction change.
• Only the objects speed changes.
• Only the objects direction changes.
• The object bounces up and down.

What does it mean for an object to accelerate?

• An objects speed and direction change.
• Only the objects speed changes.
• Only the objects direction changes.
• The object bounces up and down.

What is it called when an object resists change in motion? 

• acceleration
• inertia
• uniform mortion
• Newton's Law

Which of the following is a contact force?

• magnetism
• gravity
• acceleration
• friction

True or False. Friction is NOT a type of force.

• True
• False

True or False. When the sun is low in the sky early in the morning trees form long shadows.

• True
• False

Which determines the size of a shadow?

• Size of the object
• The angle of light
• Closeness of object
• All of the above