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Question 1 Physics 2010 | JAMB/UTME (2010)
A
30 kmh-1 
B
130 kmh-1 
C
200 kmh 
D
230 kmh-1 
Explanation.
Share Answer Since the cars are moving in the same direction, the velocity of a body A, Va,relative to another body B, Vb is given by V = Va - Vb
the velocity of faster car is measured by the observer in the slower car is V = 130kmh-1 - 100 kmh-1 = 30 kmh-1

Correct Option:
A
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Question 2 Physics 2010 | JAMB/UTME (2010)
A
the feather will be brown away by the wind while stone will drop steadily 
B
the stone and the feather will both reach the ground a the same time 
C
the feather will reach the ground first 
D
the stone will reach the ground first 
Explanation.
Share Answer The acceleration of free fall due to gravity is independent of mass of the body. Therefore, ignoring air resistance, which affects feather more than the stone, the stone and the feather will both reach the ground at the same time

Correct Option:
B
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Question 3 Physics 2010 | JAMB/UTME (2010)
A
2 ms-2 
B
5 ms-2 
C
20 ms-2 
D
25 ms-2 
Explanation.
Share Answer Acceleration = (increase in velocity)/time taken
= (45 - 25)/10 = (20)/10 = 2ms-2

Correct Option:
A
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Question 4 Physics 2010 | JAMB/UTME (2010)
A
protect them while carrying loads 
B
prevent the loads from slipping 
C
enable them to carry more load 
D
make them stronger 
Explanation.
Share Answer Rough surface promotes friction. Therefore, roughness of conveyor belt prevents the load from slipping

Correct Option:
B
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Question 5 Physics 2010 | JAMB/UTME (2010)
A
55. 6 % 
B
50.0% 
C
33.3% 
D
22.2% 
Explanation.
Share Answer Efficiency = (MA)/V.R x 100% = (load)/Effort x (1)/V.R
= (800)/400 x (1)/6 x 100% = 33.3%

Correct Option:
C
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Question 6 Physics 2010 | JAMB/UTME (2010)
A
0.75 J 
B
7.50 J 
C
75.00 J 
D
750.00 J 
Explanation.
Share Answer Energy stored in a stretched wire (strain energy)
= average force x extension
= (1)/2 Fe
= (1)/2 x 300 N (30.5 - 30.0) x 10-2 m
= (300)/2 x 0.5 x 10-2 = 0.75J

Correct Option:
A
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Question 7 Physics 2010 | JAMB/UTME (2010)
A
300 N 
B
200 N 
C
150 N 
D
100 N 
Explanation.
Share Answer Thrust = pressure x area = 100 pa x 3 m2 = 300 N

Correct Option:
A
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Question 8 Physics 2010 | JAMB/UTME (2010)
A
a density bottle 
B
an eureka can 
C
a pipette 
D
a burette 
Explanation.
Share Answer Since relative density = mass of substance
mass of equal volume of water relative density bottle should be used to determine the mass of the substance, and mass of an equal volume of water by filling the bottle with the powder and water respectively and weighed with the beam balance.

Correct Option:
A
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Question 9 Physics 2010 | JAMB/UTME (2010)
A
vapour pressure of a fluid 
B
density of liquid 
C
relative humidity of a liquid 
D
relative density of a liquid 
Explanation.
Share Answer The instrument used in measuring relative density is hydrometer

Correct Option:
D
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Question 10 Physics 2010 | JAMB/UTME (2010)
A
low density 
B
low freezing point 
C
high specific 
D
low boiling point 
Explanation.
Share Answer The low freezing point of alcohol, -115c enable low temperatures to be measured. mercury freezes at 39c, and cannot be used in countries like Russia where winter temperatures of -40c are common

Correct Option:
B
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