Heat (CBSE Class-7 Science): Questions 7 - 13 of 18

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Question number: 7

» Heat » Transfer of Heat » Conduction

MCQ▾

Question

Transfer of heat in solid objects generally takes place through:

Choices

Choice (4) Response

a.

Convection

b.

Radiation

c.

Conduction

d.

All of the above

Question number: 8

» Heat » Transfer of Heat » Radiation

MCQ▾

Question

The transfer of heat in absence of a medium is called as:

Choices

Choice (4) Response

a.

Conduction

b.

Radiations

c.

Convection

d.

All of the above

Question number: 9

» Heat » Kinds of Clothes We Wear in Summer & Winter » Dark Colored Clothes

MCQ▾

Question

Dark coloured clothes are ideal for:

Choices

Choice (4) Response

a.

Monsoon

b.

Winter

c.

Summer

d.

Question does not provide sufficient data or is vague

Question number: 10

» Heat » Measuring Temperature » Clinical Thermometer

MCQ▾

Question

The thing, which does not allow the mercury in a clinical thermometer not to fall of its own, is:

Choices

Choice (4) Response

a.

Constriction

b.

Kink

c.

Kink & Constriction

d.

Question does not provide sufficient data or is vague

Question number: 11

» Heat » Hot and Cold » Introduction to Heat

MCQ▾

Question

Heat is defined as:

Choices

Choice (4) Response

a.

Caloric

AND

Thermal energy

b.

Heat is a form of energy

c.

Heat was a fluid

d.

All a. , b. and c. are correct

Question number: 12

» Heat » Measuring Temperature » Laboratory Thermometer

MCQ▾

Question

Precautions taken while handling the laboratory thermometer are:

Choices

Choice (4) Response

a.

The reading should be taken while its straight and not tilted

b.

Thermometer should not be held using the bulb

c.

It must be cleaned before and after using

d.

All a. , b. and c. are correct

Question number: 13

» Heat » Transfer of Heat » Convection

MCQ▾

Question

On which principle sea breeze and land breeze are formed:

Choices

Choice (4) Response

a.

Convection

b.

Radiations

c.

Conduction

d.

None of the above

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