Force Review

1. _____ is needed to make wheels and tires turn.

• Rolling Friction
• Static Friction
• Elastic Friction
• Sliding Friction

2. According to Newton’s Second Law of Motion, when acted upon by a force an object will _____.

• accelerate against the force
• accelerate in many directions
• accelerate in the direction of the force
• not move

3. _____ slows down an object that slides.

• Rolling Friction
• Static Friction
• Elastic Friction
• Sliding Friction

4. The upward force on an object falling through the air is ______.

• air resistance
• inertia
• gravity
• friction

6. _____ is a force that exists between any two objects that have mass.

• Friction
• Gravity
• Air Resistance
• Acceleration

7. _____ is the force of gravity’s acceleration on an object.

• Mass
• Inertia
• Acceleration
• Weight

9. The relationship among force, mass, and acceleration is stated in ______.

• Law of conservation of momentum
• Newton's 1st Law of Motion
• Newton's 2nd Law of Motion
• Newton's 3rd Law of Motion

10. When there is a change in an object’s motion, a(n) ______ takes place.

• balanced force
• unbalanced force
• gravitational force
• frictional force

11. If gravity did NOT affect the path of a horizontally thrown ball, the ball would ______

• go straight up
• travel horizontally forever
• fall straight down
• follow a curved path

14. ______ is defined as a push or pull.

• Friction
• Gravity
• Force
• Inertia