Question # 1

The energy store in an atom or molecule due to intermolecular force is:

Choose an answer

Kinetic energy

Potential energy

Internal energy

G.P.E

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

Choose an answer

L = L∘ (1 + αΔT)

L = L∘ (1 + ΔT)

L = L∘ (1 - αΔT)

L = L∘ (1 -ΔT)

___________ specific heat of water is benefits in sustaining life.

Choose an answer

High

Low

Medium

None

Absolute zero is equal to:

Choose an answer

0°C

-273°C

0°F

All

If 'm' is a mass of a body and 'c' is its specific heat, then its heat capacity is a given by

Choose an answer

m/c

c/m

mc

mc2

Water freezes at .

Choose an answer

0^o F

32 ^oF

-273 K

0 K

Which gas is used inspite of Freon gas in refrigerator?

Choose an answer

CO₂

H₂

NH₃

N₂

A large water reservoir keeps the temperature of nearby land moderate due to

Choose an answer

Low temperature of water

Low specific heat of water

Less absorption of heat

Large specific heat of water

In ___________ (CFC) was found reacting with ozone.

Choose an answer

1920s

1970s

1950s

1960s

The unit of Heat is:

Choose an answer

Kelvin

Joule

Jkg^-1 K^-1

kg

A material of thermometer should has:

Choose an answer

Visible

High freezing point

Low melting point

All of these

Which expands on heating?

Choose an answer

Water

Steel

Copper

All are true

Density of water is:

Choose an answer

100 kgm^-3

1000 kgm^-3

10 kgm^-3

1 kgm^-3

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

Choose an answer

387

920

470

903

Which of the following material has large specific heat?

Choose an answer

Copper

Ice

Water

Mercury

More Classes

Other Links

Physics 9th Class English Medium Unit 8 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer