2005 - JAMB Physics Past Questions and Answers - page 3
21
A body of mass 36kg falls through a viscous liquid which offers a drag force of 260N on the body. The upthrust on the body at terminal velocity is?
[g = 10ms2]
[g = 10ms2]
A
100N
B
620N
C
50N
D
310N
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22
The process whereby the molecules of different substances move randomly is called?
A
capillarity
B
surface tension
C
osmosis
D
diffusion
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23
I. reproducibility
II. Sensibility
III. High terminal capacity
iv. High accuracy
The quantities of a good thermometer include?
II. Sensibility
III. High terminal capacity
iv. High accuracy
The quantities of a good thermometer include?
A
I, II and IV only
B
I, III and IV only
C
I, II and III only
D
II, III and IV only
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24
The process whereby a liquid turns spontaneously into vapour is called?
A
regelation
B
sublimation
C
boiling
D
evaporation
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25
I. Melting
II. Boiling
III. Refraction
IV. Conduction
Which combination of the above is evident of the molecular nature of matter?
II. Boiling
III. Refraction
IV. Conduction
Which combination of the above is evident of the molecular nature of matter?
A
II , III and IV only
B
I ,II and IV only
C
I , III and IV only
D
I , II and III only
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26
When very hot water is poured into two identical thin and thick glass tumblers in equal volumes, the thick one cracks because?
A
of the even expansion of glass
B
glass is a crystal
C
glass is a good conductor of heat
D
of the uneven expansion of gass
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27
Satellite communication network makes use of?
A
visible light
B
sound wave
C
radio wave
D
infra-red wave
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28
An electric device is rated 2000 W, 250 v. The correct fuse rating of the device is?
A
9 A
B
8 A
C
6 A
D
7 A
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29
The north pole of a magnet can never be separated from the south pole because of the property knowledge as?
A
magnetic octopole
B
magnetic monopole
C
magnetic dipole
D
magnetic quadrupole
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30
A car battery rated 45 A H is charged with a charger whose rating is 2.5A.How long will it take to charge the battery full?
A
10 hrs
B
18 hrs
C
20 hrs
D
25 hrs
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