# Quiz 1: Measurement

Physics & Astronomy

Q 1Q 1

(5.0 10

^{4)} (3.0 10^{6})= A)1.5 10^{9}B)1.5 10^{10}C)1.5 10^{11}D)1.5 10^{12}E)1.5 10^{13}Free

Multiple Choice

C

Q 2Q 2

(5.0 10

^{4)} (3.0 10^{-6})= A)1.5 10^{-3}B)1.5 10^{-1}C)1.5 10^{1}D)1.5 10^{3}E)1.5 10^{5}Free

Multiple Choice

B

Q 3Q 3

5.0 10

^{5}+ 3.0 10^{6}= A)8.0 10^{5}B)8.0 10^{6}C)5.3 10^{5}D)3.5 10^{5}E)3.5 10^{6}Free

Multiple Choice

E

Q 4Q 4

(7.0 10

^{6})/(2.0 10^{-6})= A)3.5 10^{-12}B)3.5 10^{-6}C)3.5 D)3.5 10^{6}E)3.5 10^{12}Free

Multiple Choice

Q 5Q 5

The SI base units have the dimensions of:
A)mass, weight, time
B)length, density, time
C)mass, length, time
D)weight, length, time
E)mass, length, speed

Free

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Q 10Q 10

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

Free

Multiple Choice

Q 11Q 11

Which of the following is closest to a yard in length?
A)0.01 m
B)0.1 m
C)1 m
D)100 m
E)1000 m

Free

Multiple Choice

Q 12Q 12

There is no SI base unit for area because:
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

Free

Multiple Choice

Q 13Q 13

1 m is equivalent to 3.281 ft.A cube with an edge of 1.5 ft has a volume of:
A)1.2 10

^{2}m^{3}B)9.6 10^{-2}m^{3}C)10.5 m^{3}D)9.5 10^{-2}m^{3}E)0.21 m^{3}Free

Multiple Choice

Q 14Q 14

A sphere with a radius of 1.7 cm has a volume of:
A)2.1 10

^{-5}m^{3}B)9.1 10^{-4}m^{3}C)3.6 10^{-3}m^{3}D)0.11 m^{3}E)21 m^{3}Free

Multiple Choice

Q 15Q 15

A sphere with a radius of 1.7 cm has a surface area of:
A)2.1 10

^{-5}m^{2}B)9.1 10^{-4}m^{2}C)3.6 10^{-3}m^{2}D)0.11 m^{2}E)36 m^{2}Free

Multiple Choice

Q 16Q 16

A right circular cylinder with a radius of 2.3 cm and a height of 1.4 m has a volume of:
A)23 m

^{3}B)0.23 m^{3}C)9.3 10^{-3}m^{3}D)2.3 10^{-3}m^{3}E)7.4 10^{-4}m^{3}Free

Multiple Choice

Q 17Q 17

A right circular cylinder with a radius of 2.3 cm and a height of 1.4 cm has a total surface area of:
A)1.7 10

^{-3}m^{2}B)3.2 10^{-3}m^{2}C)2.0 10^{-3}m^{2}D)5.3 10^{-3}m^{2}E)7.4 10^{-3}m^{2}Free

Multiple Choice

Q 18Q 18

A cubic box with an edge of exactly 1 cm has a volume of:
A)10

^{-9}m^{3}B)10^{-6}m^{3}C)10^{-3}m^{3}D)10^{3}m^{3}E)10^{6}m^{3}Free

Multiple Choice

Q 19Q 19

A square with an edge of exactly 1 cm has an area of:
A)10

^{-6}m^{2}B)10^{-4}m^{2}C)10^{-2}m^{2 }D)10^{2}m^{2}E)10^{4}m^{2}Free

Multiple Choice

Q 20Q 20

The SI standard of length is based on:
A)the distance from the north pole to the equator along a meridian passing through Paris
B)wavelength of light emitted by Hg

^{198}C)wavelength of light emitted by Kr^{86}D)a precision meter stick in Paris E)the speed of lightFree

Multiple Choice

Q 21Q 21

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

Free

Multiple Choice

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Q 26Q 26

The SI standard of time is based on:
A)the daily rotation of the Earth
B)the frequency of light emitted by Kr

^{86}C)the yearly revolution of the Earth about the sun D)a precision pendulum clock E)none of theseFree

Multiple Choice

Q 27Q 27

Six million seconds is approximately:
A)One day
B)Ten days
C)Two months
D)One year
E)Ten years

Free

Multiple Choice

Q 28Q 28

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

Free

Multiple Choice

Q 29Q 29

Which of the following weighs about a pound on Earth?
A)0.05 kg
B)0.5 kg
C)5 kg
D)50 kg
E)500 kg

Free

Multiple Choice

Q 30Q 30

If 1 u = 1.66 x 10

^{-27}kg, 1 gram = A)1.66 x 10^{-24}u B)1.66 x 10^{24}u C)1.66 x 10^{27}u D)6.02 x 10^{26}u E)6.02 x 10^{23}uFree

Multiple Choice

Q 31Q 31

One tonne (metric ton)is 1000 kg.How many grams are there in one tonne?
A)10

^{-6}B)10^{-3}C)1 D)10^{3}E)10^{6}Free

Multiple Choice

Q 32Q 32

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

Free

Multiple Choice

Q 33Q 33

The unit of mass density might be:
A)pound per cubic foot
B)gram per liter
C)kilogram per meter
D)cubic kilogram per meter
E)cubic meter per kilogram

Free

Multiple Choice

Q 34Q 34

A sphere has a radius of 21 cm and a mass of 1.9 kg.Its mass density is about:
A)4.9 10

^{-}^{5}kg/m^{3}B)2.1 10^{-4}kg/m^{3}C)2.0 10^{-2}kg/m^{3}D)16 kg/m^{3}E)49 kg/m^{3}Free

Multiple Choice

Q 35Q 35

During a short interval of time the speed v in m/s of an automobile is given by v = at

^{2}+ bt^{3}, where the time t is in seconds.The units of a and b are respectively: A)ms^{2}; ms^{4}B)s^{3}/m; s^{4}/m C)m/s^{2}; m/s^{3}D)m/s^{3}; m/s^{4}E)m/s^{4}; m/s^{5}Free

Multiple Choice

Q 36Q 36

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

^{2}/TM C)TM/L^{2}D)L^{2}T/M E)M/L^{2}TFree

Multiple Choice

Q 37Q 37

Suppose A = B

^{n}C^{m}, where A has dimensions LT, B has dimensions L^{2}T^{-1}, and C has dimensions LT^{2}.Then the exponents n and m have the values: A)2/3; 1/3 B)2; 3 C)4/5; -1/5 D)1/5; 3/5 E)1/2; 1/2Free

Multiple Choice