Forces and Motion Review

These magnets will

• repel
• attract

The force of ______ keeps the Moon moving around the Earth. 

• magnetism 
• gravity 
• friction 
• force

What is a force that tries to stop motion between two surface that are touching?

• gravity 
• magnetism 
• friction 
• rate of motion 

Which of the following is NOT a way to reduce friction?

• lubrication 
• smoother surface
• decrease the surface area
• increase the surface area

The _______ is the location of an object relative to another object.

• motion 
• direction 
• position 
• rate of motion 

What is a force that is equal on both sides?

• object at rest 
• balanced force
• rate of motion 
• unbalanced force

True or False: Objects with a greater amount of mass take a greater amount of force to move.

• True
• False 

The force most responsible for leaves falling down from trees is_____. 

• cold temperatures
• friction
• gravity
• magnetism 

Why is a compass a useful tool for describing motion?

• it shows direction
• it shows speed 
• it shows position 
• it shows motion 

What slows down your bicycle when you apply the breaks?

• that there is not a ramp
• you run out of speed
• lubrication 
• the friction between the wheels and the road