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Science true or false.[1 Mark each]

PHYSICS CH3 Fluids · Tamil Nadu Board STD 9 (Tamil - English Medium). 15 questions.

Questions

true or false.[1 Mark each]

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15 questions · timed · auto-graded

Question 11 Mark
State whether true or false. If false, correct the statement.

Hydraulic press is used in the extraction of oil from oil seeds.

  • True

  • False

Answer
Hydraulic press is used in the extraction of oil from oil seeds- True
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Question 21 Mark
State whether true or false. If false, correct the statement.

Archimedes’ principle can also be applied to gases.

  • True

  • False

Answer
False.

Correct statement: Archimedes’ principle is about fluid displacement which does not involve gases.

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Question 31 Mark
State whether true or false. If false, correct the statement.

The foundations of high-rise buildings are kept wide so that they may exert more pressure on the ground.

  • True

  • False

Answer
The foundations of high-rise buildings are kept wide so that they may exert more pressure on the ground- True
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Question 41 Mark
State whether true or false. If false, correct the statement.

The shape of an object helps to determine whether the object will float or not

  • True

  • False

Answer
The shape of an object helps to determine whether the object will float or not- True.
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Question 51 Mark
State whether true or false. If false, correct the statement.

The weight of fluid displaced determines the buoyant force on an object.

  • True

  • False

Answer
The weight of fluid displaced determines the buoyant force on an object- True
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Question 61 Mark
Salt water provides less buoyant force than freshwater.
Answer
Correct statement: Salt water provides more buoyant force than freshwater.
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Question 71 Mark
Upthrust = weight of the fluid displaced – apparent weight of the object.
Answer
False.
Correct statement: Upthrust = Weight of the fluid displaced – apparent loss of weight of the object.
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Question 91 Mark
If the buoyant force is less, the object will float.
Answer
False.
Correct statement: If the buoyant force is less, the object will sink.
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Question 111 Mark
The external pressure applied on an incompressible liquid is transmitted uniformly throughout the liquid.
Answer
True.
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Question 121 Mark
The absolute pressure is zero-referenced against atmospheric pressure.
Answer
False.Correct statement: The absolute pressure is zero-referenced against a perfect vacuum.
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Question 131 Mark
The barometer works by balancing the Mercury in the glass tube along with the outside air pressure.
Answer
False.
Correct statement: The barometer works by balancing the Mercury in the glass tube against the outside air pressure.
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Question 141 Mark
Liquid exerts pressure in the upward direction.
Answer
False.
Correct statement: Liquid exerts pressure in all directions.
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true or false.[1 Mark each] - Science STD 9 Questions - Vidyadip