Heat Test

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Heat Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

The amount of heat energy required to melt a given mass of a substance as its melting point without any rise in temperature is called:

A
Heat capacity

B
Sp heat capacity

C
Latent heat of fusion

D
Sp latent heat of fusion
Question 2
1 / -0

The specific heat capacity of a substance:

A
Changes with the mass of given substance

B
Is a constant quantity for a given substance

C
Changes in the area or volume of substance

D
Changes with rise or fall in temperature
Question 3
1 / -0

When sea breeze blows:

A
It always blows during night time

B
The cold and heavy air rises up and blows towards the sea.

C
The warm and light air rises up and blows towards land

D
It always blows during day time
Question 4
1 / -0

The specific heat capacity of water in SI system is:

A
4200 JKg^-1 k^-1

B
420 JKg^-1 k^-1

C
4.20 JKg^-1 k^-1

D
42 JKg^-1 k^-1
Question 5
1 / -0

The flow of heat energy from one body to another body is determined by:

A
The temperature differences between the bodies

B
The amount of heat energy contained in the bodies

C
The mass of the bodies

D
All of the above
Question 6
1 / -0

Land and sea breezes are formed in coastal regions because:

A
Water has very high specific heat capacity than the land.

B
Land has very high specific heat capacity than the water.

C
Sea water cools the cooler regions.

D
All the above
Question 7
1 / -0

A solid of mass 0.15 kg is heated from 10˚C to 90˚C. If the sp. heat capacity of solid is 390 J kg^-1˚C^-1, the heat absorbed by solid is:

A
4680 J

B
4860 J

C
4608 J

D
6480 J
Question 8
1 / -0

Rise in temperature on Celsius:

A
Rise in temperature in kelvin

B
(△t(˚C) + 273) K

C
(△t(˚C) - 273) K

D
None of the above
Question 9
1 / -0

On increasing the area of exposed surface, the rate of expression:

A
Increases

B
Decreases

C
Increases or decreases

D
No effect
Question 10
1 / -0

Factors affecting the rate of evaporation are:

A
The dryness of air

B
The temperature of the liquid

C
The nature of the liquid

D
All of the above
Question 11
1 / -0

Units of temperature:

A
Kelvin

B
Fahrenheit(˚F)

C
Reaumur(˚R)

D
All of the above

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Heat Test - 1

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Heat Test - 1

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Question 1

Heat capacity

Sp heat capacity

Latent heat of fusion

Sp latent heat of fusion

Question 2

Changes with the mass of given substance

Is a constant quantity for a given substance

Changes in the area or volume of substance

Changes with rise or fall in temperature

Question 3

It always blows during night time

The cold and heavy air rises up and blows towards the sea.

The warm and light air rises up and blows towards land

It always blows during day time

Question 4

4200 JKg-1 k-1

420 JKg-1 k-1

4.20 JKg-1 k-1

42 JKg-1 k-1

Question 5

The temperature differences between the bodies

The amount of heat energy contained in the bodies

The mass of the bodies

All of the above

Question 6

Water has very high specific heat capacity than the land.

Land has very high specific heat capacity than the water.

Sea water cools the cooler regions.

All the above

Question 7

4680 J

4860 J

4608 J

6480 J

Question 8

Rise in temperature in kelvin

(△t(˚C) + 273) K

(△t(˚C) - 273) K

None of the above

Question 9

Increases

Decreases

Increases or decreases

No effect

Question 10

The dryness of air

The temperature of the liquid

The nature of the liquid

All of the above

Question 11

Kelvin

Fahrenheit(˚F)

Reaumur(˚R)

All of the above

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4200 JKg^-1 k^-1

420 JKg^-1 k^-1

4.20 JKg^-1 k^-1

42 JKg^-1 k^-1