Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
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Question 1111:
The diagram above shows a lift pump with valves at P and Q. During a downward stroke of the piston
Options:
A) both valves are open
B) P is open while Q is closed
C) P is closed while Q is open
D) Both valves are closed
Show Answer
The correct answer is B .
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Question 1112: The distance xm travelled by a particle in time t seconds is described by the equation x = 10 + 12t2, Find the average speed of the particle between the time interval t = 2s and t = 5s
Options:
A) 60 ms-1
B) 72 ms-1
C) 84 ms-1
D) 108 ms-1
Show Answer
The correct answer is B .
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Question 1113: When a man moves toward a plane mirror at a speed of 6m/s, the distance the man and his image increased at a speed of?
Options:
A) 2 m/s
B) 4 m/s
C) 12 m/s
D) 14 m/s
Show Answer
The correct answer is C .
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Question 1114:
For the wave motion represented above, the wavelength is given by
Options:
A) p
B) q
C) r
D) s
E) t
Show Answer
The correct answer is D .
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Question 1115: Determine the distance between the consecutive antinodes XX if the wavelength is 66cm
Options:
A) 15cm
B) 30cm
C) 60cm
D) 120cm
Show Answer
The correct answer is B .
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Question 1116: The echo of a sounder from the bottom of an ocean is heard 2.5 seconds later. If the speed of sound in water is 1,400ms-1, the depth of the ocean is
Options:
A) 1,750m
B) 3,500m
C) 1,400m
D) 2,800m
E) 2,100m
Show Answer
The correct answer is A .
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Question 1117: The eclipse of the sun occurs when the
Options:
A) moon is between the sun and the earth
B) earth is between the sun and the moon
C) moon is not completely hidden in the earth's shadow
D) moon's umbra falls on some part of the earth
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The correct answer is A .
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Question 1118:
The amount of heat needed to raise the temperature of 10kg of Copper by 1K is its
Options:
A) specific heat capacity
B) latent heat
C) heat capacity
D) internal energy
Show Answer
The correct answer is A .
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Question 1119: Why does a piece of cork float on water?
Options:
A) there is no upthrust on it when completely immersed in water
B) the upthrust on it when completely immersed in water
C) the upthrust on it when completely immersed in water is less than its weight in air
D) its specific gravity is greater than that of water
E) its specific gravity is the same as that of water
Show Answer
The correct answer is E .
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Question 1120: The amount of heat required to raise the temperature of a body is
Options:
A) Thermal energy
B) thermal conduction
C) heat loss
D) specific heat capacity
E) thermal capacity
Show Answer
The correct answer is E .