Multiple Choice Identify the
letter of the choice that best completes the statement or answers the question.


1.

A moving billiard ball collides with an identical stationary one. Which
statement correctly describes what happens to the first ball after collision?
A)  It continues with the same velocity as before  B)  It has onehalf of
its initial velocity  C)  It comes to rest  D)  It moves in the
opposite direction 


2.

The unit of force in the SI system is
A)  kgm^{2}/s  B)  kgm/s^{2}  C)  kgm^{2}/s^{2}  D)  kgm/s 


3.

A 100 mg pill has a mass of
A)  0.001 g  B)  0.01 g  C)  0.1
g  D)  1 g 


4.

Which of the following quantities is NOT a vector?
A)  displacement  B)  acceleration  C)  speed  D)  force 


5.

An object moving with a velocity of 20 m/s undergoes an acceleration of –4
m/s^{2}. After 2 seconds, the velocity of the object is
A)  16 m/s  B)  12 m/s  C)  28
m/s  D)  –8 m/s 


6.

Which of the following statements best describes science?
A)  Science discovers and corrects its own mistakes.  B)  Science is a
glorious entertainment.  C)  Science is concerned with facts which are
absolutely true.  D)  Science is concerned with collecting and classifying as many facts as
possible. 


7.

The radius of the earth is 6.38 x 10^{3} km. This value can also
be expressed as
A)  6.38 x 10^{ –5} m  B)  6.38 x 10^{6} m  C)  6.38 x
10^{5} m  D)  638 km 


8.

A net force of 20 N acts on an object and causes it to experience an
acceleration of 10 m/s^{2}. The object’s mass is
A)  10 kg  B)  100 kg  C)  0.5
kg  D)  2 kg 


9.

The Law of Universal Gravitation states that the force between two bodies
is
A)  inversely proportional to the square of the distance between the
bodies.  B)  directly proportional to the distance between the bodies.  C)  inversely
proportional to the distance between the bodies.  D)  inversely proportional to their
masses. 


10.

If a body is moving at constant velocity, it must have
A)  constant acceleration  B)  a constant force acting upon
it  C)  constant speed  D)  all of the
above 


11.

Normal body temperture is 98.6 °F. What is this temperature in
degrees Celsius?
A)  22.8 °C  B)  54.8 °C  C)  37.0
°C  D)  66.6 °C 


12.

An object that has twice as much mass as another also has twice as
much
A)  acceleration  B)  area  C)  weight  D)  volume 


13.

The correct answer for the operation below is:
A)  2.0  B)  2.0 x 10^{
–16}  C)  2.0 x 10^{0}  D)  2.0 x
10^{16} 


14.

Acceleration refers to
A)  how much the velocity changes  B)  how much the speed changes  C)  how fast the
velocity changes  D)  how fast an object is moving 


15.

An object is dropped from rest. In one second of free fall it would have
traveled about
