Question # 1

Number of factors on which torque depends :

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2

3

4

5

The velocity of bodies falling down

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Dwscreses

Increases

Zero

Constant

If we increase the length of spanner the torque produced will be

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Increased

Decreased

Constant

Zero

ΣF=0 is __________ condition of equilibrium:

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1st

2nd

Unstable

Stable

A couple consists of how many forces:

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1

2

3

4

The value of g on moon's surface is 1.6 ms^-2. What will be the weight of a a 100 kg body on the surface of the moon?

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100 N

160 N

1000 N

1600 N

While rounding the numbers if last digit is 5, then.

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It is simply dropped

The digit on its left is increased by 1

It is rounded to get nerarest even number

It remain same.

Length of a rod is L∘ on temperature T∘. After heating upto temperature T, its length L becomes

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L = L∘ (1 + αΔT)

L = L∘ (1 + ΔT)

L = L∘ (1 - αΔT)

L = L∘ (1 -ΔT)

Which of the following is non-renewable fossil fuel?

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Oil

Coal

Gas

All of these

Cos 0°=

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0.5

1

0.866

0

The unit of gravitational constnat is:

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Nm² kg

Nm²kg^-2

Nm²kg^-1

N - m²

Relation between force and momentum is:

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ΔP/F

ΔP/t

ΔPF

None

SI unit of pressure is pascal, which is equal to

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104 Nm-2

1 Nm-2

102 Nm-2

103 Nm-2

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