Heat MCQ Questions for Class 7 Science Chapter 4 with Answers

# Heat MCQ Questions for Class 7 Science Chapter 4 with Answers

We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 7 Science book Chapter 4 Heat with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam taking the help of the Class 7 Science Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of Heat. Each Questions has four options followed by the right answer. Download the Science Quiz Questions with Answers for Class 7 free Pdf and prepare to exam and help students understand the concept very well.

(i) conduction
(ii) convection
(iv) insulators

(i) conduction

(i) Water vapour
(ii) Metals
(iii) Alcohol
(iv) Water

(ii) Metals

(i) Picometer
(ii) Barometer
(iii) Manometer
(iv) Thermometer

(iv) Thermometer

## Q4. Which of the following is a insulator

(i) Graphite
(ii) Air
(iii) Aluminium rod
(iv) Copper rod

(ii) Air

## Q5. A device used to measure the temperature is

(i) transistor
(ii) thermometer
(iii) mercury
(iv) none of these

(ii) thermometer

## Q6. In which process heat is transferred from hotter end to colder end is known as:

(i) conduction
(ii) convection
(iv) none of these

(i) conduction

## Q7. During the night

(i) Sea water heats up
(ii) Land heats up
(iii) Land cools more quickly than the sea
(iv) Sea cools quickly than the land

(iii) Land cools more quickly than the sea

## Q8. What is the normal temperature of a healthy person?

(i) 37°C
(ii) 37°F
(iii) 37 K
(iv) None of these

(i) 37°C

## Q9. Light coloured clothes are preferred during:

(i) winter
(ii) summer
(iii) rainy
(iv) none of these

(ii) summer

## Q10. What is the range of the temperature reading of a clinical thermometer?

(i) 35°C – 42°C
(ii) -10°C – 110°C
(iii) 0°C – 100°C
(iv) 32°C – 42°C

(i) 35°C – 42°C

## Q11. The correct method of reading a clinical thermometer is:

(i) holding the thermometer by bulb
(ii) before use the mercury level should be below 39°C
(iii) don’t hold the thermometer by bulb
(iv) none of these

(iii) don’t hold the thermometer by bulb

(i) 39°C
(ii) 17°C
(iii) 27°C
(iv) 37°C

(iv) 37°C

## Q13. Heat always flows

(i) from a colder object to a hotter object
(ii) from a hotter object to a colder object
(iii) in both the directions
(iv) heat never flows from one object to other

(ii) from a hotter object to a colder object

(i) Picometer
(ii) Barometer
(iii) Manometer
(iv) Thermometer

(iii) Manometer

## Q15. What is the range of the temperature reading of a laboratory thermometer?

(i) -10°C – 110°C
(ii) 35°C – 42°C
(iii) 0°C – 100°C
(iv) -10°C – 100°C

(i) -10°C – 110°C

## Q16. Which currents are formed in all liquid on heating ?

(ii) conduction current
(iii) convection current
(iv) none of these

(iii) convection current

## Q17. In which mode of heat transfer does the transfer of heat occur as a wave?

(i) Conduction
(ii) Convection
(iv) All of these

## Q18. Heat from the sun reaches to us by

(ii) conduction
(iii) convection
(iv) all of these

## Q19. Which thermometer records the highest and lowest temperature during a period of time ?

(i) Clinical thermometer
(ii) Laboratory thermometer
(iii) Minimum and maximum thermometer
(iv) None of these

(iii) Minimum and maximum thermometer

(i) conduction
(ii) convection
(iv) induction

## Q21. Which thermometer is used to measure temperature of different things and places ?

(i) Laboratory thermometer
(ii) Clinical thermometer
(iii) Minimum and maximum thermometer
(iv) None of these

(i) Laboratory thermometer

## Q22. Heat is a form

(i) Power
(ii) Work
(iii) Temperature
(iv) Energy

(iv) Energy

### Q23. A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile:

(i) is a better conductor of heat than the wooden tile.
(ii) is polished while wooden tile is not polished.
(iii) reflects more heat than wooden tile.
(iv) is a poor conductor of heat than the wooden tile.

(i) is a better conductor of heat than the wooden tile.

## Q24. Expansion of a substance on heating depends on

(i) nature of the substance
(ii) rise in temperature
(iii) both A and B
(iv) color of the substance

(iii) both (i) and (ii)

## Q25. The materials which allow the heat to pass through them easily are called

(i) insulators
(ii) conductors
(iii) semiconductors
(iv) poor conductors

(ii) conductors

## Q26. Which scale was used in clinical thermometer during earlier times?

(i) Celsius scale
(ii) Fahrenheit scale
(iii) Both (i) and (ii)
(iv) None of these

(ii) Fahrenheit scale

## Q27. Which type of cloth is preferred in summer?

(i) Silk clothes
(ii) Cotton clothes
(iii) Nylon clothes
(iv) Polyester clothes

(ii) Cotton clothes

## Q28. The phenomenon involved in the formation of land and sea breeze is:

(i) conduction
(ii) convection
(iv) all of these

(ii) convection

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