Class 7 Heat Important Questions VBQs

Class 7 Heat Important Questions VBQs. There are many more useful educational material which the students can download in pdf format and use them for studies. Study material like concept maps, important and sure shot question banks, quick to learn flash cards, flow charts, mind maps, teacher notes, important formulas, past examinations question bank, important concepts taught by teachers. Students can download these useful educational material free and use them to get better marks in examinations.  Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.

Activity 1

Aim – To compare the conductivity of different substances.

Materials Required –

Theory –

Diagram

Procedure

Observation

1. The _______________________________________________________________________

2. The ________________________________________________________________________

3. The ________________________________________________________________________

4. The ________________________________________________________________________

5. The ________________________________________________________________________

Conclusion

________________________________________________________________________________

________________________________________________________________________________

Multiple Choice Questions

Tick the correct option(s):-

1. Heat is a form of

a) electricity

b) energy

c) friction

d) force

2. The primary mode of transfer of heat in solids is

a) conduction

b) convection

c) radiation

d) conduction and convection

3. Which of these is a good conductor of heat?

a) wool

b) straw

c) water

d) copper

4. The heat energy from the sun reaches us through

a) conduction

b) convection

c) radiation

d) radiation as well as convection

5. Air conditioners are placed high up on the walls so that

a) they create less noise

b) cooler air sinks down and cools the room as hot air rises up

c) room looks better

d) cooling takes place faster by conduction

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