Question 1

A nanosecond is:

Accepted Answer

A)  109 s 
B)  10-9 s 
C)  10-6 s 
D)  10-15 s 
E)  10-12 s 
A)  109 s 
B)  10-9 s 
C)  10-6 s 
D)  10-15 s 
E)  10-12 s

Question 2

5.0 * 105 + 3.0 * 106 =

Accepted Answer

A)  8.0 * 105 
B)  8.0 *106 
C)  5.3 * 105 
D)  3.5 *105 
E)  3.5 * 106 
A)  8.0 * 105 
B)  8.0 *106 
C)  5.3 * 105 
D)  3.5 *105 
E)  3.5 * 106

Question 3

Six million seconds is approximately:

Accepted Answer

A)  One day 
B)  Ten days 
C)  Two months 
D)  One year 
E)  Ten years 
A)  One day 
B)  Ten days 
C)  Two months 
D)  One year 
E)  Ten years

Question 4

1.513 + 27.3 =

Accepted Answer

A)  29 
B)  28.8 
C)  28.9 
D)  28.81 
E)  28.813 
A)  29 
B)  28.8 
C)  28.9 
D)  28.81 
E)  28.813

Question 5

During a short interval of time the speed v in m/s of an automobile is given by v = at2 + bt3, where the time t is in seconds. The units of a and b are respectively:

Accepted Answer

A)  m.s2; m.s4 
B)  s3/m; s4/m 
C)  m/s2; m/s3 
D)  m/s3; m/s4 
E)  m/s4; m/s5 
A)  m.s2; m.s4 
B)  s3/m; s4/m 
C)  m/s2; m/s3 
D)  m/s3; m/s4 
E)  m/s4; m/s5

Question 6

A right circular cylinder with a radius of 2.3 cm and a height of 1.4 cm has a total surface area of:

Accepted Answer

A)  1.7 * 10-3 m2 
B)  3.2 * 10-3 m2 
C)  2.0 *10-3 m2 
D)  5.3* 10-3 m2 
E)  7.4 * 10-3 m2 
A)  1.7 * 10-3 m2 
B)  3.2 * 10-3 m2 
C)  2.0 *10-3 m2 
D)  5.3* 10-3 m2 
E)  7.4 * 10-3 m2

Question 7

The unit of mass density might be:

Accepted Answer

A)  pound per cubic foot 
B)  gram per liter 
C)  kilogram per meter 
D)  cubic kilogram per meter 
E)  cubic meter per kilogram 
A)  pound per cubic foot 
B)  gram per liter 
C)  kilogram per meter 
D)  cubic kilogram per meter 
E)  cubic meter per kilogram

Question 8

A square with an edge of exactly 1 cm has an area of:

Accepted Answer

A)  10-6 m2 
B)  10-4 m2 
C)  10-2 m2  
D)  102 m2 
E)  104 m2 
A)  10-6 m2 
B)  10-4 m2 
C)  10-2 m2  
D)  102 m2 
E)  104 m2

Question 9

Which of the following weighs about a pound on Earth?

Accepted Answer

A)  0.05 kg 
B)  0.5 kg 
C)  5 kg 
D)  50 kg 
E)  500 kg 
A)  0.05 kg 
B)  0.5 kg 
C)  5 kg 
D)  50 kg 
E)  500 kg

Question 10

(5.0 * 104) * (3.0 *106) =

Accepted Answer

A)  1.5 * 109 
B)  1.5*1010 
C)  1.5* 1011 
D)  1.5 *1012 
E)  1.5 *1013 
A)  1.5 * 109 
B)  1.5*1010 
C)  1.5* 1011 
D)  1.5 *1012 
E)  1.5 *1013

Question 11

A sphere has a radius of 21 cm and a mass of 1.9 kg. Its mass density is about:

Accepted Answer

A)  4.9 * 10-5 kg/m3 
B)  2.1 *10-4 kg/m3 
C)  2.0 * 10-2 kg/m3 
D)  16 kg/m3 
E)  49 kg/m3 
A)  4.9 * 10-5 kg/m3 
B)  2.1 *10-4 kg/m3 
C)  2.0 * 10-2 kg/m3 
D)  16 kg/m3 
E)  49 kg/m3

Question 12

The SI standard of time is based on:

Accepted Answer

A)  the daily rotation of the Earth 
B)  the frequency of light emitted by Kr86 
C)  the yearly revolution of the Earth about the sun 
D)  a precision pendulum clock 
E)  none of these 
A)  the daily rotation of the Earth 
B)  the frequency of light emitted by Kr86 
C)  the yearly revolution of the Earth about the sun 
D)  a precision pendulum clock 
E)  none of these

Question 13

A cubic box with an edge of exactly 1 cm has a volume of:

Accepted Answer

A)  10-9 m3 
B)  10-6 m3 
C)  10-3 m3 
D)  103 m3 
E)  106 m3 
A)  10-9 m3 
B)  10-6 m3 
C)  10-3 m3 
D)  103 m3 
E)  106 m3

Question 14

Suppose A = BC, where A has the dimensions L/M and C has the dimensions L/T. Then B has the dimension:

Accepted Answer

A)  T/M 
B)  L2/TM 
C)  TM/L2 
D)  L2T/M 
E)  M/L2T 
A)  T/M 
B)  L2/TM 
C)  TM/L2 
D)  L2T/M 
E)  M/L2T

Question 15

The SI base units have the dimensions of:

Accepted Answer

A)  mass, weight, time 
B)  length, density, time 
C)  mass, length, time 
D)  weight, length, time 
E)  mass, length, speed 
A)  mass, weight, time 
B)  length, density, time 
C)  mass, length, time 
D)  weight, length, time 
E)  mass, length, speed

Question 16

In 1866, the U. S. Congress defined the U. S. yard as exactly 3600/3937 international meter. This was done primarily because:

Accepted Answer

A)  length can be measured more accurately in meters than in yards 
B)  the meter is more stable than the yard 
C)  this definition relates the common U. S. length units to a more widely used system 
D)  there are more wavelengths in a yard than in a meter 
E)  the members of this Congress were exceptionally intelligent 
A)  length can be measured more accurately in meters than in yards 
B)  the meter is more stable than the yard 
C)  this definition relates the common U. S. length units to a more widely used system 
D)  there are more wavelengths in a yard than in a meter 
E)  the members of this Congress were exceptionally intelligent

Question 17

If 1 u = 1.66 x 10-27 kg, 1 gram =

Accepted Answer

A)  1.66 x 10-24 u 
B)  1.66 x 1024 u 
C)  1.66 x 1027 u 
D)  6.02 x 1026 u 
E)  6.02 x 1023 u 
A)  1.66 x 10-24 u 
B)  1.66 x 1024 u 
C)  1.66 x 1027 u 
D)  6.02 x 1026 u 
E)  6.02 x 1023 u

Exam 1: Measurement

A nanosecond is:

5.0 * 105 + 3.0 * 106 =

Six million seconds is approximately:

1.513 + 27.3 =

During a short interval of time the speed v in m/s of an automobile is given by v = at2 + bt3, where the time t is in seconds. The units of a and b are respectively:

A right circular cylinder with a radius of 2.3 cm and a height of 1.4 cm has a total surface area of:

The unit of mass density might be:

A square with an edge of exactly 1 cm has an area of:

Which of the following weighs about a pound on Earth?

(5.0 * 104) * (3.0 *106) =

A sphere has a radius of 21 cm and a mass of 1.9 kg. Its mass density is about:

The SI standard of time is based on:

A cubic box with an edge of exactly 1 cm has a volume of:

Suppose A = BC, where A has the dimensions L/M and C has the dimensions L/T. Then B has the dimension:

The SI base units have the dimensions of:

In 1866, the U. S. Congress defined the U. S. yard as exactly 3600/3937 international meter. This was done primarily because:

If 1 u = 1.66 x 10-27 kg, 1 gram =

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5.0 * 10⁵ + 3.0 * 10⁶ =

During a short interval of time the speed v in m/s of an automobile is given by v = at² + bt³, where the time t is in seconds. The units of a and b are respectively:

(5.0 * 10⁴⁾ * (3.0 *10⁶) =

If 1 u = 1.66 x 10^-27 kg, 1 gram =