Question 1

3.2* 2.7 =

Accepted Answer

A)  9 
B)  8 
C)  8.6 
D)  8.64 
E)  8.640 
A)  9 
B)  8 
C)  8.6 
D)  8.64 
E)  8.640 C

Question 2

The SI base unit for mass is:

Accepted Answer

A)  gram 
B)  pound 
C)  kilogram 
D)  ounce 
E)  kilopound 
A)  gram 
B)  pound 
C)  kilogram 
D)  ounce 
E)  kilopound C

Question 3

Suppose A = BnCm, where A has dimensions LT, B has dimensions L2T-1, and C has dimensions LT2. Then the exponents n and m have the values:

Accepted Answer

A)  2/3; 1/3 
B)  2; 3 
C)  4/5; -1/5 
D)  1/5; 3/5 
E)  1/2; 1/2 
A)  2/3; 1/3 
B)  2; 3 
C)  4/5; -1/5 
D)  1/5; 3/5 
E)  1/2; 1/2 D

Question 4

1 mi is equivalent to 1609 m so 55 mph is:

Accepted Answer

A)  15 m/s 
B)  25 m/s 
C)  81 m/s 
D)  123 m/s 
E)  1500 m/s 
A)  15 m/s 
B)  25 m/s 
C)  81 m/s 
D)  123 m/s 
E)  1500 m/s

Question 5

The number of significant figures in 15.0 is:

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 6

The number of significant figures in 0.00150 is:

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 7

Metric time is defined so that one day equals 10 hours; one hour equals 100 minutes; and one minute equals 100 seconds. One metric second equals how many normal seconds?

Accepted Answer

A)  0.60 
B)  0.864 
C)  1.00 
D)  1.16 
E)  1.67 
A)  0.60 
B)  0.864 
C)  1.00 
D)  1.16 
E)  1.67

Question 8

(7.0 *106)/(2.0 *10-6) =

Accepted Answer

A)  3.5* 10-12 
B)  3.5 * 10-6 
C)  3.5 
D)  3.5 * 106 
E)  3.5 *1012 
A)  3.5* 10-12 
B)  3.5 * 10-6 
C)  3.5 
D)  3.5 * 106 
E)  3.5 *1012

Question 9

Two girders are made of the same material. Girder A is twice as long as girder B and has a cross-sectional area that is twice as great. The ratio of the mass density of girder A to the mass density of girder B is:

Accepted Answer

A)  4 
B)  2 
C)  1 
D)  1/2 
E)  1/4 
A)  4 
B)  2 
C)  1 
D)  1/2 
E)  1/4

Question 10

1 m is equivalent to 3.281 ft. A cube with an edge of 1.5 ft has a volume of:

Accepted Answer

A)  1.2 * 102 m3 
B)  9.6 * 10-2 m3 
C)  10.5 m3 
D)  9.5 * 10-2 m3 
E)  0.21 m3 
A)  1.2 * 102 m3 
B)  9.6 * 10-2 m3 
C)  10.5 m3 
D)  9.5 * 10-2 m3 
E)  0.21 m3

Question 11

A sphere with a radius of 1.7 cm has a surface area of:

Accepted Answer

A)  2.1 * 10-5 m2 
B)  9.1 *10-4 m2 
C)  3.6 *10-3 m2 
D)  0.11 m2 
E)  36 m2 
A)  2.1 * 10-5 m2 
B)  9.1 *10-4 m2 
C)  3.6 *10-3 m2 
D)  0.11 m2 
E)  36 m2

Question 12

A right circular cylinder with a radius of 2.3 cm and a height of 1.4 m has a volume of:

Accepted Answer

A)  23 m3 
B)  0.23 m3 
C)  9.3 * 10-3 m3 
D)  2.3 * 10-3 m3 
E)  7.4 * 10-4 m3 
A)  23 m3 
B)  0.23 m3 
C)  9.3 * 10-3 m3 
D)  2.3 * 10-3 m3 
E)  7.4 * 10-4 m3

Question 13

A sphere with a radius of 1.7 cm has a volume of:

Accepted Answer

A)  2.1* 10-5 m3 
B)  9.1* 10-4 m3 
C)  3.6*10-3 m3 
D)  0.11 m3 
E)  21 m3 
A)  2.1* 10-5 m3 
B)  9.1* 10-4 m3 
C)  3.6*10-3 m3 
D)  0.11 m3 
E)  21 m3

Question 14

Which of the SI standard units is NOT based on a constant of nature?

Accepted Answer

A)  The meter, because the speed of light can vary from place to place. 
B)  The second, because cesium cannot be found everywhere. 
C)  The kilogram, because it is based on an arbitrary piece of metal. 
D)  The kilogram, because the gram is the standard unit. 
E)  The meter, because it is defined in terms of the speed of light in vacuum, and there is no perfect vacuum anywhere. 
A)  The meter, because the speed of light can vary from place to place. 
B)  The second, because cesium cannot be found everywhere. 
C)  The kilogram, because it is based on an arbitrary piece of metal. 
D)  The kilogram, because the gram is the standard unit. 
E)  The meter, because it is defined in terms of the speed of light in vacuum, and there is no perfect vacuum anywhere.

Question 15

A gram is:

Accepted Answer

A)  10-6 kg 
B)  10-3 kg 
C)  1 kg 
D)  103 kg 
E)  106 kg 
A)  10-6 kg 
B)  10-3 kg 
C)  1 kg 
D)  103 kg 
E)  106 kg

Question 16

(5.0 *104) * (3.0*10-6) =

Accepted Answer

A)  1.5 *10-3 
B)  1.5 * 10-1 
C)  1.5* 101 
D)  1.5 * 103 
E)  1.5 *105 
A)  1.5 *10-3 
B)  1.5 * 10-1 
C)  1.5* 101 
D)  1.5 * 103 
E)  1.5 *105

Question 17

The SI standard of length is based on:

Accepted Answer

A)  the distance from the north pole to the equator along a meridian passing through Paris 
B)  wavelength of light emitted by Hg198 
C)  wavelength of light emitted by Kr86 
D)  a precision meter stick in Paris 
E)  the speed of light 
A)  the distance from the north pole to the equator along a meridian passing through Paris 
B)  wavelength of light emitted by Hg198 
C)  wavelength of light emitted by Kr86 
D)  a precision meter stick in Paris 
E)  the speed of light

Question 18

There is no SI base unit for area because:

Accepted Answer

A)  an area has no thickness; hence no physical standard can be built 
B)  we live in a three (not a two) dimensional world 
C)  it is impossible to express square feet in terms of meters 
D)  area can be expressed in terms of square meters 
E)  area is not an important physical quantity 
A)  an area has no thickness; hence no physical standard can be built 
B)  we live in a three (not a two) dimensional world 
C)  it is impossible to express square feet in terms of meters 
D)  area can be expressed in terms of square meters 
E)  area is not an important physical quantity

Question 19

One tonne (metric ton) is 1000 kg. How many grams are there in one tonne?

Accepted Answer

A)  10-6 
B)  10-3 
C)  1 
D)  103 
E)  106 
A)  10-6 
B)  10-3 
C)  1 
D)  103 
E)  106

Question 20

Which of the following is closest to a yard in length?

Accepted Answer

A)  0.01 m 
B)  0.1 m 
C)  1 m 
D)  100 m 
E)  1000 m 
A)  0.01 m 
B)  0.1 m 
C)  1 m 
D)  100 m 
E)  1000 m

Exam 1: Measurement

3.2* 2.7 =

The SI base unit for mass is:

Suppose A = BnCm, where A has dimensions LT, B has dimensions L2T-1, and C has dimensions LT2. Then the exponents n and m have the values:

1 mi is equivalent to 1609 m so 55 mph is:

The number of significant figures in 15.0 is:

The number of significant figures in 0.00150 is:

Metric time is defined so that one day equals 10 hours; one hour equals 100 minutes; and one minute equals 100 seconds. One metric second equals how many normal seconds?

(7.0 *106)/(2.0 *10-6) =

Two girders are made of the same material. Girder A is twice as long as girder B and has a cross-sectional area that is twice as great. The ratio of the mass density of girder A to the mass density of girder B is:

1 m is equivalent to 3.281 ft. A cube with an edge of 1.5 ft has a volume of:

A sphere with a radius of 1.7 cm has a surface area of:

A right circular cylinder with a radius of 2.3 cm and a height of 1.4 m has a volume of:

A sphere with a radius of 1.7 cm has a volume of:

Which of the SI standard units is NOT based on a constant of nature?

A gram is:

(5.0 *104) * (3.0*10-6) =

The SI standard of length is based on:

There is no SI base unit for area because:

One tonne (metric ton) is 1000 kg. How many grams are there in one tonne?

Which of the following is closest to a yard in length?

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Suppose A = BⁿC^m, where A has dimensions LT, B has dimensions L²T^-1, and C has dimensions LT². Then the exponents n and m have the values:

(7.0 10⁶)/(2.0 10^-6) =

(5.0 10⁴⁾ (3.0*10^-6) =