Chapterj1: MEASUREMENT 1
, Chapterj1: MEASUREMENT
1. ThejSIjstandardjofjtimejisjbasedjon:
A. thejdailyjrotationjofjthejearth
B. thejfrequencyjofjlightjemittedjbyjKr86
C. thejyearlyjrevolutionjofjthejearthjaboutjthejsun
D. ajprecisionjpendulumjclock
E. nonejofjthesej
Ans:j E
2. Ajnanosecondjis:
A. 109js
B. 10−9js
C. 10−10js
D. 10−10js
E. 10−12
Ans:j B
3. ThejSIjstandardjofjlengthjisjbasedjon:
A. thejdistancejfromjthejnorthjpolejtojthejequatorjalongjajmeridianjpassingjthroughjParis
B. wavelengthjofjlightjemittedjbyjHg198
C. wavelengthjofjlightjemittedjbyjKr86
D. ajprecisionjmeterjstickjinjParis
E. thejspeedjofjlightj
Ans:j E
4. Inj1866,jthejU.jS.jCongressjdefinedjthejU.jS.jyardjasjexactlyj3600/3937j internationaljmeter.jT
hisjwasjdonejprimarilyjbecause:
A. lengthjcanjbejmeasuredjmorejaccuratelyjinjmetersjthanjinjyards
B. thejmeterjisjmorejstablejthanjthejyard
C. thisjdefinitionjrelatesjthejcommonjU.jS.jlengthjunitsjtojajmorejwidelyjusedjsystem
D. therejarejmorejwavelengthsjinjajyardjthanjinjajmeter
E. thejmembersjofjthisjCongressjwerejexceptionallyjintelligentj
Ans:j C
5. Whichjofjthejfollowingjisjclosestjtojajyardjinjlength?
A. 0.01jm
B. 0.1m
C. 1jm
D. 100jm
E. 1000jm
Ans:j C
2 Chapterj1:j j MEASUREMENT
, 6. TherejisjnojSIjbasejunitjforjareajbecause:
A. anjareajhasjnojthickness;jhencejnojphysicaljstandardjcanjbejbuilt
B. wejlivejinjajthreej(notjajtwo)jdimensionaljworld
C. itjisjimpossiblejtojexpressjsquarejfeetjinjtermsjofjmeters
D. areajcanjbejexpressedjinjtermsjofjsquarejmeters
E. areajisjnotjanjimportantjphysicaljquantityj
Ans:j D
7. ThejSIjbasejunitjforjmassjis:
A. gram
B. pound
C. kilogram
D. ounce
E. kilopound
jAns:j C
8. Aj gramj is:
A. 10−6j kg
B. 10−3j kg
C. 1j kg
D. 103jkg
E. 106jkg
Ans:j B
9. Whichjofjthejfollowingjweighsjaboutjajpound?
A. 0.05jkg
B. 0.5jkg
C. 5j kg
D. 50jkg
E. 500jkg
Ans:j D
10. (5.0j×j104)j×j(3.0j×j106)j=
A. 1.5j×j109
B. 1.5j×j1010
C. 1.5j×j1011
D. 1.5j×j1012
E. 1.5j×j1013
Ans:j C
11. (5.0j×j104)j×j(3.0j×j10−6)j=
A. 1.5j×j10−3
B. 1.5j×j10−1
C. 1.5j×j101
D. 1.5j×j103
E. 1.5j×j105
Ans:j B
Chapterj1: MEASUREMENT 3
, 12. 5.0j×j105j+j3.0j×j106j=
A. 8.0j×j105
B. 8.0j×j106
C. 5.3j×j105
D. 3.5j×j105
E. 3.5j×j106
Ans:j E
13.j (7.0j×j106)/(2.0j×j10−6j)j=
A. 3.5j×j10−12
B. 3.5j×j10−6
C. 3.5
D. 3.5j×j106
E. 3.5j×j1012
Ans:j E
14. Thejnumberjofjsignificantjfiguresjinj0.00150jis:
A.j j 2
B.j j 3
C.j j 4
D.j j 5
E.j j 6
Ans:j B
15. Thejnumberjofjsignificantjfiguresjinj15.0jis:
A.j j 1
B.j j 2
C.j j 3
D.j j 4
E.j j 5
Ans:j C
16. 3.2j×j2.7j=
A. 9
B. 8
C. 8.6
D. 8.64
E. 8.640
Ans:j C
4 Chapterj1:j j MEASUREMENT
, Chapterj1: MEASUREMENT
1. ThejSIjstandardjofjtimejisjbasedjon:
A. thejdailyjrotationjofjthejearth
B. thejfrequencyjofjlightjemittedjbyjKr86
C. thejyearlyjrevolutionjofjthejearthjaboutjthejsun
D. ajprecisionjpendulumjclock
E. nonejofjthesej
Ans:j E
2. Ajnanosecondjis:
A. 109js
B. 10−9js
C. 10−10js
D. 10−10js
E. 10−12
Ans:j B
3. ThejSIjstandardjofjlengthjisjbasedjon:
A. thejdistancejfromjthejnorthjpolejtojthejequatorjalongjajmeridianjpassingjthroughjParis
B. wavelengthjofjlightjemittedjbyjHg198
C. wavelengthjofjlightjemittedjbyjKr86
D. ajprecisionjmeterjstickjinjParis
E. thejspeedjofjlightj
Ans:j E
4. Inj1866,jthejU.jS.jCongressjdefinedjthejU.jS.jyardjasjexactlyj3600/3937j internationaljmeter.jT
hisjwasjdonejprimarilyjbecause:
A. lengthjcanjbejmeasuredjmorejaccuratelyjinjmetersjthanjinjyards
B. thejmeterjisjmorejstablejthanjthejyard
C. thisjdefinitionjrelatesjthejcommonjU.jS.jlengthjunitsjtojajmorejwidelyjusedjsystem
D. therejarejmorejwavelengthsjinjajyardjthanjinjajmeter
E. thejmembersjofjthisjCongressjwerejexceptionallyjintelligentj
Ans:j C
5. Whichjofjthejfollowingjisjclosestjtojajyardjinjlength?
A. 0.01jm
B. 0.1m
C. 1jm
D. 100jm
E. 1000jm
Ans:j C
2 Chapterj1:j j MEASUREMENT
, 6. TherejisjnojSIjbasejunitjforjareajbecause:
A. anjareajhasjnojthickness;jhencejnojphysicaljstandardjcanjbejbuilt
B. wejlivejinjajthreej(notjajtwo)jdimensionaljworld
C. itjisjimpossiblejtojexpressjsquarejfeetjinjtermsjofjmeters
D. areajcanjbejexpressedjinjtermsjofjsquarejmeters
E. areajisjnotjanjimportantjphysicaljquantityj
Ans:j D
7. ThejSIjbasejunitjforjmassjis:
A. gram
B. pound
C. kilogram
D. ounce
E. kilopound
jAns:j C
8. Aj gramj is:
A. 10−6j kg
B. 10−3j kg
C. 1j kg
D. 103jkg
E. 106jkg
Ans:j B
9. Whichjofjthejfollowingjweighsjaboutjajpound?
A. 0.05jkg
B. 0.5jkg
C. 5j kg
D. 50jkg
E. 500jkg
Ans:j D
10. (5.0j×j104)j×j(3.0j×j106)j=
A. 1.5j×j109
B. 1.5j×j1010
C. 1.5j×j1011
D. 1.5j×j1012
E. 1.5j×j1013
Ans:j C
11. (5.0j×j104)j×j(3.0j×j10−6)j=
A. 1.5j×j10−3
B. 1.5j×j10−1
C. 1.5j×j101
D. 1.5j×j103
E. 1.5j×j105
Ans:j B
Chapterj1: MEASUREMENT 3
, 12. 5.0j×j105j+j3.0j×j106j=
A. 8.0j×j105
B. 8.0j×j106
C. 5.3j×j105
D. 3.5j×j105
E. 3.5j×j106
Ans:j E
13.j (7.0j×j106)/(2.0j×j10−6j)j=
A. 3.5j×j10−12
B. 3.5j×j10−6
C. 3.5
D. 3.5j×j106
E. 3.5j×j1012
Ans:j E
14. Thejnumberjofjsignificantjfiguresjinj0.00150jis:
A.j j 2
B.j j 3
C.j j 4
D.j j 5
E.j j 6
Ans:j B
15. Thejnumberjofjsignificantjfiguresjinj15.0jis:
A.j j 1
B.j j 2
C.j j 3
D.j j 4
E.j j 5
Ans:j C
16. 3.2j×j2.7j=
A. 9
B. 8
C. 8.6
D. 8.64
E. 8.640
Ans:j C
4 Chapterj1:j j MEASUREMENT
