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Worksheets

Heat

Total questions: 40

Worksheet time: 31mins

Name
Class
Date
1.

Heat is a form of

a)

Temperature

b)

Energy

c)

Thermometer

d)

Hotness

2.

The degree of hotness is

a)

Temperature

b)

Pressure

c)

Force

d)

None of these

3.

Clinical thermometer has a temperature range of

a)

35oC to 42oC

b)

100oC to 200oC

c)

-10oC to 110oC

d)

37oC

4.

A kink in the thermometer

a)

prevents flow of mercury back to the bulb

b)

is there for design

c)

Helps in taking reading properly

5.

The liquids that are generally used in thermometer is

a)

Red Alcohol

b)

Mercury

c)

Hydrochloric acid

d)

Orange Juice

6.

Which thermometer has a kink?

a)

Laboratory thermometer

b)

Clinical thermometer

7.

The average temperature of a human body is

a)

37oC

b)

100oC

c)

42oC

d)

35oC

8.

Heat flows from

a)

Hot body to Cold body

b)

Cold body to Hot Body

c)

Heat does not flow

9.

The three types of heat transfer are

a)

Conduction

b)

Convection

c)

Irrigation

d)

Radiation

10.

The type of heat transfer taking place in solids is

a)

Conduction

b)

Convection

c)

Radiation

11.

For conduction the two bodies

a)

Must be in contact

b)

Must be away

c)

Must be gases

12.

Insulators are materials that

a)

do not allow heat to pass through them

b)

allow heat to pass through them

13.

Select Good conductors of heat among these

a)

Copper

b)

Steel

c)

Rubber

d)

Wood

e)

Iron

14.

Choose Insulators of heat among the following

a)

Aluminum

b)

Plastic

c)

Cloth

d)

Silver

e)

Rubber

15.

In liquids heat transfer takes place by the process of

a)

Conduction

b)

Convection

c)

Radiation

d)

Irrigation

16.

In gases heat transfer takes place by the process of

a)

Conduction

b)

Convection

c)

Radiation

d)

Irrigation

17.

In convection the molecules

a)

Vibrate in their own position

b)

Move from one place to the other

c)

No molecules are required

18.

Hot air

a)

rises upwards

b)

moves downwards

c)

moves sideways

19.

Land Breeze blows during

a)

Day time

b)

Night

c)

Noon

20.

Radiation is a type of heat transfer that ................ any medium

a)

requires

b)

does not require

c)

both

21.

Heat transfer in iron box is by

a)

conduction

b)

convection

c)

radiation

d)

electricity

22.

In hair dryer, the heat transfer is due to

a)

conduction

b)

convection

c)

radiation

23.

We receive sunlight from sun by the process of

a)

Conduction

b)

convection

c)

radiation

24.

......... coloured clothes absorb more heat

a)

light

b)

dark

25.

The spoon half dipped in a tea cup gets heated completely because of

a)

conduction

b)

radiation

c)

convection

26.

We feel warm if we stand next to the fire because of

a)

conduction

b)

convection

c)

radiation

27.

Heat transfer in Air Conditioning is due to

a)

conduction

b)

convection

c)

radiation

28.

Cooling inside a refrigerator takes place by

a)

conduction

b)

convection

c)

radiation

29.

Cell phone gets heated up after using for long time because of

a)

conduction

b)

convection

c)

radiation

30.

Cold water molecules

a)

move downwards

b)

rise upwards

c)

move sideways

31.

Ceramic or China dish is

a)

a conductor

b)

an insulator

32.

If two bodies at equal temperatures are brought in contact the heat transfer is

a)

conduction

b)

radiation

c)

no heat transfer takes place

d)

convection

33.

If heat flows from body B to body A, which body is at lower temperature

a)

body A

b)

body B

c)

Both are at equal temperature

d)

none of these

34.

The liquid used in thermometer should be

a)

transparent

b)

opaque

35.

The substance used in thermometer should have

a)

low melting point

b)

high melting point

c)

none of these

36.

The range of laboratory thermometer is

a)

-10oC to 110oC

b)

0oC to 100oC

c)

-100oC to 100oC

d)

35oC to 42oC

37.

When we sit on the desk for a long time, it becomes warm because of

a)

convection

b)

radiation

c)

cloth

d)

conduction

38.

heating in microwave is due to

a)

conduction

b)

radiation

c)

convection

39.

Water boils because of the heat transfer through

a)

Conduction

b)

Convection

c)

Radiation

40.

When someone has a fever we feel warm when we touch them. This heat transfer is due to

a)

Conduction

b)

Convection

c)

Radiation

d)

Temperature