true or false. [1 M]

Question 11 Mark

A liquid exerts pressure in all directions.

Answer

True

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Question 21 Mark

Pressure is defined as the force per unit length.

Answer

False

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Question 31 Mark

The Sl unit of pressure is newton.

Answer

False

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Question 41 Mark

The blood pressure in our body balances the atmospheric pressure acting on our body.

Answer

True

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Question 51 Mark

Water comes out more slowly from an upstair tap than from a similar downstair tap.

Answer

True

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Question 61 Mark

The nails get penetrated into the planks easily because a large force acts on a small area.

Answer

True

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Question 71 Mark

The force per unit area is the pressure on that area.

Answer

True

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Question 81 Mark

Muscular force and frictional force are the examples of non-contact forces.

Answer

False

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Question 91 Mark

Force between two electric charges is called magnetic force.

Answer

False

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Question 101 Mark

In 'tug of war' when both the teams apply equal pulling force, then net force is maximum.

Answer

False

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Question 111 Mark

If two forces act in opposite directions, then net force is the difference between the two forces.

Answer

True

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Science true or false. [1 M]

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