Question 1

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 B

Question 2

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 B

Question 3

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. C

Question 4

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 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

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 7

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 8

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 9

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 10

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

Question 11

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 12

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

Question 13

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 14

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 15

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 16

(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 17

(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 18

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 19

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

Question 20

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

Exam 1: Measurement

The number of significant figures in 0.00150 is:

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

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

Six million seconds is approximately:

The number of significant figures in 15.0 is:

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

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:

There is no SI base unit for area because:

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:

The SI base unit for mass is:

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

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

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

A nanosecond 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)=

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

5.0 * 105 + 3.0 * 106 =

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

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

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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:

(7.0 * 10⁶)/(2.0 *10^-6)=

(5.0 * 10⁴⁾ * (3.0 * 10⁶)=

5.0 * 10⁵ + 3.0 * 10⁶ =

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