1. It would probably be easiest to ride a bicycle across
A. Gravel
C. Grass
B. Sand
D. Sidewalk
2. The force that always acts opposite to the direction of the motion of an object is called:
A. Gravity
C. Friction
B. Inertia
D. None of the above
3. According to Newton's third law, forces always occur in pairs.
A. Equal but complementary
B. Equal but opposite
C. Unequal but opposite
D. Unequal but complementary
4. Newton first described gravity while watching:
A. Smoke rise
B. A car accelerate
C. Someone walking
D. An apple falling to find the acceleration of
5. You would NOT use an object
A. Initial speed
B. Final speed
C. Weight
D. Time
6. Newton's law of motion explains why you may lean sideways in a car if the driver turns a corner too quickly
A. First
C. Third
B. Second
D. Primary
7. ___ is the speed of an object and the direction of motion
A. Friction
B. Mass
C. Gravity
D. Velocity
8. is NOT a force
A. Friction
B. Gravity
C. Mass
D. All of the Above
9. An object that experiences a push or a pull has an) exerted on it
A. Environment
B. Inertia
C. System
D. Force
10. Jill pushes a box of books across the floor. What causes the box to move?
A. Force
B. Friction
C. Gravity
D. Inertia​