1. The mSImstandard mofmtime mis mbased mon:
A. the mdailymrotationmofmthe mearth
B. the mfrequencymofmlightmemitted mbymKr86
C. the myearlymrevolutionmofmthe mearthmaboutmthe msun
D. amprecisionmpendulum mclock
E. none mofmthes
e mAns:m E
2. Amnanosecond mis:
A. 109ms
B. 10−9ms
C. 10−10 m s
D. 10−10 m s
E. 10−12
Ans:m B
3. The mSImstandard mofmlengthmis mbased mon:
A. the mdistancemfrommthemnorthmpolemtomthemequatormalongmammeridianmpassing mthroughmParis
B. wavelength mofmlightmemitted mbymHg198
C. wavelength mofmlightmemitted mbymKr86
D. amprecisionmmetermstickminmParis
E. the mspeed mofmlig
htmAns:m E
4. Inm1866,mthe mU.mS.mCongressmdefined mthemU.mS.myardmas mexactlym3600/3937 m internationalm
meter.mThis mwas mdone mprimarilymbecause:
A. lengthmcanmbe mmeasured mmore maccuratelyminmmeters mthanminmyards
B. the mmetermis mmore mstable mthanmthe myard
C. this mdefinitionmrelates mthe mcommonmU.mS.mlengthmunits mtomammore mwidelymused msystem
D. there mare mmore mwavelengths minmamyardmthanminmammeter
E. the mmembers mofmthismCongressmweremexceptionallymintellig
entmAns:m C
5. Whichmofmthe mfollowing mis mclosestmtomamyardminmlength?
A. 0.01mm
B. 0.1m m
C. 1mm
D. 100mm
E. 1000mm
Ans:m C
Chapterm1: MEASUREMENT 1
, 6. There mis mnomSImbase munitmformarea mbecause:
A. anmarea mhas mnomthickness; mhence mnomphysicalmstandard mcanmbe mbuilt
B. we mlive minma mthree m(notmamtwo)mdimensionalmworld
C. itmis mimpossible mtomexpress msquare mfeetminmterms mofmmeters
D. area mcanmbe mexpressed minmterms mofmsquare mmeters
E. area mis mnotmanmimportantmphysicalmquanti
tymAns:m D
7. The mSImbase munitmformmass mis:
A. gram
B. pound
C. kilogram
D. ounce
E. kilopound
mAns: m C
8. Am gram m is:
A. 10−6m kg
B. 10−3m kg
C. 1m kg
D. 103m kg
E. 106m kg
Ans:m B
9. Whichmofmthe mfollowing mweighs maboutmampound?
A. 0.05m kg
B. 0.5mkg
C. 5m kg
D. 50mkg
E. 500mkg
Ans:m D
10. (5.0m ×m 104)m ×m (3.0m ×m 106)m =m
A. 1.5m×m109
B. 1.5m×m1010
C. 1.5m×m1011
D. 1.5m×m1012
E. 1.5m×m1013
Ans:m C
11. (5.0m ×m 104)m ×m (3.0m ×m 10−6)m =m
A. 1.5m×m10−3
B. 1.5m×m10−1
C. 1.5m×m101
D. 1.5m×m103
E. 1.5m×m105
Ans:m B
2 Chapterm1: MEASUREMENT
,12. 5.0m×m105m +m3.0m×m106m =
A. 8.0m×m105
B. 8.0m×m106
C. 5.3m×m105
D. 3.5m×m105
E. 3.5m×m106
Ans:m E
13. (7.0m ×m 106)/(2.0m ×m 10−6)m =m
A. 3.5m×m10 −1 2
B. 3.5m×m10− 6
C. 3.5
D. 3.5m×m106
E. 3.5m×m1012
Ans:m E
14. The mnumbermofmsignificantmfigures minm0.00150mis:
A.m m 2
B.m m 3
C.m m 4
D.m m 5
E.m m 6
Ans:m B
15. The mnumbermofmsignificantmfigures minm15.0mis:
A.m m 1
B.m m 2
C.m m 3
D.m m 4
E.m m 5
Ans:m C
16. 3.2m ×m 2.7 m =m
A. 9
B. 8
C. 8.6
D. 8.64
E. 8.640
Ans:m C
Chapterm1: MEASUREMENT 3
, 17. 1.513m+m27.3m=m
A. 29
B. 28.8
C. 28.9
D. 28.81
E. 28.813
( )Ans:m B
18. 1mmimis mequivalentmtom1609 mm msom55mmphmis:
A. 15m m/s
B. 25mm/s
C. 66 mm/s
D. 88mm/s
E. 1500mm/
s mAns:m B
19. Amsphere mwithma mradius mofm1.7 mcm mhas ma mvolume mof:
A. 2.1m×m10 − 5m m 3
B. 9.1m×m10 − 4 m m 3
C. 3.6 m×m10 −3 mm 3
D. 0.11mm 3
E. 21m m 3
Ans:m A
20. Amsphere mwithma mradius mofm1.7 mcm mhas ma msurface marea mof:
A. 2.1m×m10 − 5m m 2
B. 9.1m×m10 − 4 m m 2
C. 3.6 m×m10 −3 mm 2
D. 0.11mm 2
E. 36 mm 2
Ans:m C
21. Amrightmcircularmcylindermwithmamradius mofm2.3mcm mand ma mheightmofm1.4 mm mhas mamvolume mof:
A. 0.20mm 3
B. 0.14 mm 3
C. 9.3m×m10 −3 mm 3
D. 2.3m×m10 − 3 mm 3
E. 7.4 m×m10− 4m m 3
Ans:m D
22. Amrightmcircularmcylindermwithmamradiusmofm2.3mcmmandmamheightmofm1.4 mcmmhasma mtotalmsurfa
ce marea mof:
A. 1.7 m×m10 −3 m m 2
B. 3.2m×m10 − 3 mm 2
C. 2.0m×m10−3m m 3
D. 5.3m×m10 − 3m m 2
E. 7.4 m×m10− 3m m 2
Ans:m D
4 Chapterm1: MEASUREMENT