Question # 1

The S.I unit of power is :

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j/s2

J

W

J/M2

Paratrooper while coming down attains a velocity called.

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Variable velocity

Uniform velocity

Average velocity

Terminal velocity

Melting point is also known as:

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Moiling point

Freezing point

Fusion point

None of these

In symbols, co-efficient of volume expansion is defined as

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β = ΔT/V∘ΔV

β = ΔV/ΔT

β = ΔV/V∘ΔT

β = ΔT/ΔV

The power of electric kettle is 500W and takes 2s to heat up, find heat generated?

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E = 250 w

E = 1000 w

E = 10000 J

1KJ

A string is stretched by two equal and opposite forces 10 N each. The tension in the string is

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Zero

5N

10N

20N

The main source of energy n the universe is:

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Moon

Stars

Sun

Planets

The orbital speed of a low orbit satellite is

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Zero

8 ms-1

800 ms-1

8000 ms-1

Water freezes at:

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0° F

32°F

-273 K

0 K

Specific heat for iron in joule per kilogram per kelvin is:

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387

920

470

903

____________ from sun are major source of energy on earth.

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Light

Radiation

Both a & b

None of these

Mercury is used as thermometric material because it has

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Uniform thermal expansion

Low freezing point

Small heat capacity

All the above properties

1 meter cube is equal to:

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1 liters

10 liters

1000liters

100liters

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