Multiple Choice Test For FPSC, PPSC, NTS, CSS
And Various Exams
Subject Physics Chapter # 1 Measurements
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 these
Ans: E
2. A nanosecond is:
A. 109 s
B. 10-9 s
C. 10-10 s
D. 10-10 s
E. 10-12
Ans: B
3. The SI standard of length is based on:
A. the distance from the north pole to the equator along a meridian passing
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
Ans: E
4. In 1866, the U. S. Congress de?ned the U. S. yard as exactly 3600 / 3937 international
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 de?nition relates the common U. S. length units to a more widely
D. there are more wavelengths in a yard than in a meter
E. the members of this Congress were exceptionally intelligent
Ans: C
5. Which of the following is closest to a yard in length?
A. 0 . 01 m
B. 0 . 1m
C. 1 m
D. 100 m
E. 1000 m
Ans: C
6. 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
Ans: D
7. The SI base unit for mass is:
A. gram
B. pound
C. kilogram
D. ounce
E. kilopound
Ans: C
8. A gram is:
A. 10-6 kg
B. 10-3 kg
C. 1 kg
D. 103 kg
E. 106 kg
Ans: B
9. Which of the following weighs about a pound?
A. 0 . 05 kg
B. 0 . 5kg
C. 5 kg
D. 50 kg
E. 500 kg
Ans: D
10. (5 . 0 × 104 ) × (3 . 0 × 106 )=
A. 1 . 5 × 109
B. 1 . 5 × 1010
C. 1 . 5 × 1011
D. 1 . 5 × 1012
E. 1 . 5 × 1013
Ans: C
11. (5 . 0 × 104 ) × (3 . 0 × 10-6 )=
A. 1 . 5 × 10-3
B. 1 . 5 × 10-1
C. 1 . 5 × 101
D. 1 . 5 × 103
E. 1 . 5 × 105
Ans: B
12. 5 . 0 × 105 +3 . 0 × 106 =
A. 8 . 0 × 105
B. 8 . 0 × 106
C. 5 . 3 × 105
D. 3 . 5 × 105
E. 3 . 5 × 106
Ans: E
13. (7 . 0 × 106 ) / (2 . 0 × 10-6 )=
A. 3 . 5 × 10-12
B. 3 . 5 × 10-6
C. 3 . 5
D. 3 . 5 × 106
E. 3 . 5 × 1012
Ans: E
14. The number of signi?cant ?gures in 0 . 00150 is:
A. 2
B. 3
C. 4
D. 5
E. 6
Ans: B
15. The number of signi?cant ?gures in 15 . 0 is:
A. 1
B. 2
C. 3
D. 4
E. 5
Ans: C
16. 3 . 2 × 2 . 7=
A. 9
B. 8
C. 8 . 6
D. 8 . 64
E. 8 . 640
Ans: C
17. 1 . 513 + 27 . 3=
A. 29
B. 28 . 8
C. 28 . 9
D. 28 . 81
E. 28 . 813
( )Ans: B
18. 1 mi is equivalent to 1609 m so 55 mph is:
A. 15 m/s
B. 25 m/s
C. 66 m/s
D. 88 m/s
E. 1500 m/s
Ans: B
19. A sphere with a radius of 1 . 7 cm has a volume of:
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
Ans: A
20. A sphere with a radius of 1 . 7 cm has a surface area of:
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
Ans: C
21. A right circular cylinder with a radius of 2 . 3 cm and a height of 1 . 4 m has a volume of
A. 0 . 20 m3
B. 0 . 14 m3
C. 9 . 3 × 10-3 m3
D. 2 . 3 × 10-3 m3
E. 7 . 4 × 10-4 m3
Ans: D
22. A right circular cylinder with a radius of 2 . 3 and a height of.com 1 .
4 cm has a total surface
of:
A. 1 . 7 × 10-3 m2
B. 3 . 2 × 10-3 m2
C. 2 . 0 × 10-3 m3
D. 5 . 3 × 10-3 m2
E. 7 . 4 × 10-3 m2
Ans: D
23. A cubic box with an edge of exactly 1 cm has a volume of:
A. 10-9 m3
B. 10-6 m3
C. 10-3 m3
D. 103 m3
E. 106 m3
Ans: B
24. A square with an edge of exactly 1 cm has an area of:
A. 10-6 m2
B. 10-4 m2
C. 102 m2
D. 104 m2
E. 106 m2
Ans: B
25. 1 m is equivalent to 3 . 281 ft. A cube with an edge of 1 . 5 ft has a volume of:
A. 1 . 2 × 102 m3
B. 9 . 6 × 10-2 m3
C. 10 . 5m3
D. 9 . 5 × 10-2 m3
E. 0 . 21 m3
Ans: B
26. During a short interval of time the speed v in m/s of an automobile is given
where the time t is in seconds. The units of a and b are respectively:
A. m · s2 ;m · s4
B. s3 / m; s4 / m
2 3
C. m / s ;m / s
3 4
D. m / s ;m / s
4 5
E. m / s ;m / s
Ans: D
27. Suppose A = BC , where A has the dimension L/M and C has the dimension
has the dimension:
A. T/M
B. L2 /TM
C. TM/L2
D. L2T/M
E. M/L2T
Ans: A
28. 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:
A. 2 / 3; 1 / 3
B. 2; 3
C. 4 / 5; -1 / 5
D. 1 / 5; 3 / 5
E. 1 / 2; 1 / 2
Ans: D
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