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MEASUREMENT
Fill In The Blanks and MCQs
Multiple Choice Questions:
1. The fundamental unit of mass in S.1. system is:______.(a) kilogram
(b) meter
(c) gram
(d) newton
2. 10-6 second is called a:______.
(a) nanosecond
(b) macro second
(c) microsecond
(d) millisecond
3. One kilogram is equal to:______.
(a) 100g
(b) l0g
(c) 1000g
(d) 10,000g
4. The significant figures the number 28,000 has, is/are:______.
(a) one
(b) two
(c) three
(d) four
5. The least count of a micrometer screw gauge is:________.
(a) 1mm
(b) 0.1mm
(c) 0.01mm
(d) 0.001mm
6. 109 shows:______.
(a) mega
(b) giga
(c) kilo
(d) peta
7. The unit of surface area of a sphere is:_______.
(a) m
(b) m2
(c) m3
(d) m4
8. 2.25cm =:_____.
(a) 22.5 mm
(b) 225 mm
(c) 0225 mm
(d) 2250 mm
9. The unit of force is:_____.
(a) kilogram
(b) newton
(c) coulomb
(d) pascal
10. The significant numbers 0.002 has, is/are:_____.
(a) one
(b) three
(c) two
(d) four
11. One meter is equal to:_____.
(a) 104mm
(b) 103mm
(c) 102mm
(d) 106mm
12. 10-9 second is called a:______.
(a) decisecond
(b) millisecond
(c) micro second
(d) nanosecond
13. The fundamental unit of length in S.I. system is:______.
(a) kilogram
(b) meter
(c) yard
(d) foot
14. The standard meter is made of this and is placed at the International Bureau of weights and Measures near Paris:_____.
(a) platinum and copper
(b) iron and copper
(c) iron and iridium
(d) platinum and iridium
15. 2.5 km+ 25 m is equal to:______.
(a) 27.5 km
(b) 27.5 m
(c) 2525 m
(d) 2525 km
16. The S.I unit of acceleration is: _____.
(a) gm/s2
(b) km/s2
(c) m/s2
(d) lm/hr
17. the least count of a micrometer screw gauge is:____.
(a) 1mm
(b) 0.1mm
(c) 0.001mm
(d) 0.01mm
18. Vernier calliper can measured length up to:_______.
(a) 1 mm
(b) 0.1 mm
(c) 0.01 mm
(d) 10 mm
19. A body has mass 5000 gm its mass in kg is: _______.
(a) 0.5 kg
(b) 5 kg
(c) 50 kg
(d) 1000 kg
20. 10 power of 9 show:_____.
(a) kilo
(b) giga
(c) mega
(d) peta
21. If two quantities are directly proportional to each other the graph b/w them will be a :_____.
(a) Circle
(b) Straight line
(c) Curve
(d) Line
22. Length, mass and time are considered to be:______ quantity.
(a) Scalar
(b) Vector
(c) Fundamental
(d) None of them
23. Random error is also called:_____.
(a) Human error
(b) Accidental error
(c) Zero error
(d) Actual error
24. 2 hours = ______.
(a) 7200 sec
(b) 120 sec
(c) 60 sec
(d) 720 sec
25. A physical balance is a device used for measuring:____.
(a) Weight
(b) Mass
(c) Volume
(d) Destiny
26. 0.00786 has number of significant figure:_____.
(a) 5
(b) 4
(c) 3
(d) 6
Fill In The Blanks:
1. In everyday life measurement or measuring device plays an important role.2. Almighty Allah has created everything in this world with the best estimation.
3. Physical units that are derived from fundamental unit are called derived units.
4. Kilogram is a unit of mass in S.I. system.
5. If you wish to measure length with accuracy greater than 0.01 cm you would use a screw gauge.
6. The zero error of a measuring instrument can be positive or negative.
7. One meter is equal to 103 mm.
8. 10-9 second is called a nanosecond.
9. The fundamental unit of length in SI system is meter.
10. The standard meter is made of platinum and iridium and is placed at the international Bureau of Weights and Measures in Severe, near Paris.
Pick Out true and False:
1. The fundamental unit of time in S.I. system us minute. False2. The S.I. unit of acceleration is meter per second per second. True
3. 1 nanosecond = 10-8 second. False
4. Hundredth of a cm can be measured correctly with a micrometer screw gauge. False
5. A physical balance is a device used for measuring weight. True
6. The fundamental unit of length in S.I System is centimetre. False
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