2015 - JAMB Physics Past Questions and Answers - page 2
11
In which of the following device in the expansion of solid is a disadvantages?
I. Simple pendulum
II. Fire alarms
III. Thermostat
IV. Bimetallic thermometer
I. Simple pendulum
II. Fire alarms
III. Thermostat
IV. Bimetallic thermometer
A
III only
B
II & III only
C
I only
D
II, III & IV only
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12
If an object is placed at a height of tem above the ground at a stationary point. It posses what types of energy?
A
Mechanical energy
B
Stationary energy
C
Potential energy
D
Vibrational energy
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13
Calculate the gravitation force of attraction between two planets of 1024kg and 1027kg separated by a distance of 1020meters.
A
6.67N
B
6.56N
C
7.5N
D
8.6N
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14
Mr. F. Abioye observed his image though a plane mirror, kept a distance way from him at 4.7m in his room at what distance is the image found from Abioye eye?
A
9.4m
B
7.5m
C
5.7m
D
6.9m
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15
Primary colours of light are
A
Red, blue and green
B
Cyan, magneta and yellow
C
Black, blue and green
D
None of these colours
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16
Electrons were discovered by
A
James Chadwick B.
B
J.J Thompson
C
Sir Isaac Newton
D
Charles Newton
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17
What is the relationship mechanical advantage (MA) velocity Ratio (V.R) and efficiency with percentage?
A
e = M.A/V.R × 100 %
B
M.A = E.V.R
C
V.R = 1 ÷ sin θ M.A
D
M.A = 1/E × 100%
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18
The external parts of an object can be measure accurately through the use of which scientific instrument?
A
Micrometer screw gauge
B
Vernier Caliper
C
Meter rule
D
None of the instrument
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19
Convert 45°C to kelvin
A
318K
B
250K
C
184K
D
120K
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20
A member of the crew of a SPACESHIP experiences weightlessness in a space when they
A
Fall freely from the earth’s gravitational field
B
Is walking on the planet
C
In between the sun and the earth
D
Holding anything in space is negative
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