Questions

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13 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
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If the weight of a body is 6N on the moon, it will be about _______ on the earth.
Answer
If the weight of a body is 6N on the moon, it will be about 36N on the earth.
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Question 21 Mark
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The weight of an object on the earth is about _______ of its weight on the moon.
Answer
The weight of an object on the earth is about six times of its weight on the moon.
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Question 31 Mark
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The weight of an object on the moon is about ________ of its weight on the earth.
Answer
The weight of an object on the moon is about one-sixth of its weight on the earth.
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Question 41 Mark
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If the area of a snow shoe is five times ______ than the area of an ordinary shoe, then the pressure of a snow shoe on the snow is five times _______.
Answer
If the area of a snow shoe is five times bigger than the area of an ordinary shoe, then the pressure of a snow shoe on the snow is five times smaller.
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Question 51 Mark
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In order to sink in a fluid, the density of an object must be _____ than the ______ of the fluid.
Answer
In order to sink in a fluid, the density of an object must be less than the density of the fluid.
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Question 61 Mark
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In fluids (liquids and gases), pressure acts in ______ directions, and pressure ______ as the depth increases.
Answer
In fluids (liquids and gases), pressure acts in all directions, and pressure increase as the depth increases.
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Question 71 Mark
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It is the _______ force which makes objects appear lighter in water.
Answer
It is the buoyant force which makes objects appear lighter in water.
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Question 81 Mark
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In order that the force of gravitation between two bodies may become noticeable and cause motion, one of the bodies must have an extremely large ______.
Answer
In order that the force of gravitation between two bodies may become noticeable and cause motion, one of the bodies must have an extremely large Mass.
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Question 91 Mark
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The acceleration due to gravity on the moon is about ______ of that on the earth.
Answer
The acceleration due to gravity on the moon is about One-sixth of that on the earth.
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Question 101 Mark
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The value of g on the earth is about ______ of that on the moon.
Answer
The value of g on the earth is about six times of that on the moon.
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Question 111 Mark
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Force acting on a unit area is called _______.
Answer
Force acting on a unit area is called pressure.
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Question 121 Mark
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Snow shoes work by spreading out a person’s _______ over a much bigger ______.
Answer
Snow shoes work by spreading out a person’s weight over a much bigger area.
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Question 131 Mark
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A heavy ship floats in water because its ______ density is less than that of water.
Answer
A heavy ship floats in water because its average density is less than that of water.
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