Unit 3: Forces Review

All objects in the universe have a gravitational attraction to each other. 

• True
• False

What force brings the pencil down?

• Applied
• Magnetic
• Normal
• Gravitational

What force ultimately slows the roller coaster to a stop?

• Applied
• Normal
• Friction
• Magnetic

An _______ force must act on an object for it to CHANGE it's motion

• balanced
• unbalanced
• gravitational
• electrical

What is defined as a push or pull on an object?

• Force

• Motion

• Vector

• Speed

This type of force resists motion between two surfaces that are pressed together

• contact
• gravity
• friction

If the net force is equal to zero, the forces acting on the object are

• balanced

• unbalanced

Balanced forces do not change the object's speed or 

• direction
• distance 
• time
• mass

The unit of force is

• m/s
• m/s^2
• newton
• kg

Forces that have a net force of zero ( the object is still).

• Balanced force
• Unbalanced force