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1. Which of the following has the greatest inertia?
A
basketball
B
soccer ball
C
bowling ball
2. What Newton's Law is action-reaction?
A
Newton's 1st law
B
Newton's 3rd law
C
Newton's 2nd law
3. Which of the following is a balanced force?
A
a car accelerating
B
a hanging lamp
C
kicking a soccer ball
4. What is the force that is perpendicular to the surface?
A
friction force
B
gravitational force
C
normal force
5. Static friction is
A
always less than kinetic friction
B
always greater than kinetic friction
C
equal to kinetic friction
6. How much does a 45 kg person weigh?
A
45 N
B
4.58 N
C
445.41 N
7. The mass of an object is
A
directly proportional to the net force and inversely proportional to the acceleration
B
inversely proportional to the net force
C
directly proportional to the acceleration
8. Galileo's law of inertia is the same as
A
Newton's 3rd law
B
Newton's 2nd law
C
Newton's 1st law
9. F = ma
A
Newton's 2nd law
B
Newton's 1st law
C
Newton's 3rd law
10. Seatbelts are needed because of
A
Newton's 3rd law
B
Newton's 2nd law
C
Newton's 1st law
11. The force of opposition is called the
A
net force
B
normal force
C
friction force
12. Newton equals
A
kg m/s^2
B
kg m/s
C
kg m
13. If two dogs are pulling on a rope and the rope moves forward, the force is
A
balanced
B
unbalanced
C
equal
14. The length of an arrow in a force diagram shows the
A
direction of a vector
B
magnitude of a vector
C
amplification of a vector
15. The tendency of an object to resist change in its motion is known as
A
inertia
B
mass
C
force