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Worksheets

Heat

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

The first physical quantity that we study in thermometry comes under the heading of:

a)

Potential

b)

Pressure

c)

Heat

d)

Temperature

2.

In thermometry we study about the measurement of:

a)

Potential

b)

Pressure

c)

Heat

d)

Temperature

3.

Fluids always flow from a region of higher to lower:

a)

Potential

b)

Pressure

c)

Heat

d)

Temperature

4.

Electric charge ( positive) flows from a body at higher to lower:

a)

Potential

b)

Pressure

c)

Heat

d)

Temperature

5.

Heat flows from a body at higher to lower:

a)

Potential

b)

Pressure

c)

Heat

d)

Temperature

6.

The degree of hotness or coldness is:

a)

Potential

b)

Pressure

c)

Heat

d)

Temperature

7.

The temperature of a substance changes from -20°C to 20°C. What is the temperature change on Kelvin scale:

a)

253 K

b)

293 K

c)

40 K

d)

-40 K

8.

At S.T.P. pure water boils at:

a)

100 K

b)

173 K

c)

273 K

d)

373 K

9.

When a piece of red hot iron is thrust into boiling water, temperature of the boiling water will:

a)

Increase

b)

Decrease

c)

Remains same

d)

Increase by 10 Celsius

10.

When water is changed into ice it:

a)

Expands

b)

Contacts

c)

Both

d)

None

11.

Normal human body temperature in centigrade is:

a)

27

b)

37

c)

47

d)

57

12.

Normal human body temperature in kelvin is:

a)

94.4

b)

96.4

c)

98.4

d)

100.4

13.

The maximum density of pure water is:

a)

0 oC

b)

4 oC

c)

59 oC

d)

100 oC

14.

A graph plotted between volume and pressure, when temperature is kept constant is a:

a)

Hyperbola

b)

Ellipse

c)

Circle

d)

Straight line

15.

A graph plotted between volume and temperature, when pressure is kept constant is a:

a)

Hyperbola

b)

Circle

c)

Ellipse

d)

Straight line

16.

The quantity of heat required to change temperature of one kg mass of a substance by one kelvin is called:

a)

Heat capacity

b)

Specific heat capacity.

c)

Latent heat

d)

All of them

17.

Specific heat of water than the specific heat of copper is:

a)

Less

b)

More

c)

Equal

d)

None of these

18.

The S.I. unit of specific heat is:

a)

J/Kg

b)

J/ Kg-K

c)

Kg/ J

d)

J/ K

19.

Mercury is commonly used as the working liquid in laboratory thermometer because it:

a)

Has a high freezing point

b)

Has a high density

c)

Is silvery

d)

Expands evenly and proportionally

20.

S.I. unit of coefficient of linear (or volumetric) expansion is:

a)

K

b)

1/K

c)

oC

d)

1/oC