Class 7 Science MCQ Chapter 4 Heat Solutions in English Medium, Class 7 Science Multiple Choice Question Answer in English to each chapter is provided in the list so that you can easily browse throughout different chapters Class 7 Science MCQ Chapter 4 Heat Notes and select need one.
Class 7 Science MCQ Chapter 4 Heat
Also, you can read the SCERT book online in these sections Class 7 Science Objective Type Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. These solutions are part of SCERT All Subject Solutions. Here we have given Assam Class 7 Science MCQs Solutions in English for All Subject, You can practice these here.
Heat
Chapter – 4
| MCQ |
1. The degree of hotness or coldness of a body is called:
(a) Heat.
(b) Light.
(c) Temperature.
(d) Energy.
Ans: (c) Temperature.
2. Which of the following is a reliable measure of the degree of hotness of an object?
(a) Our sense of touch.
(b) Colour of the object.
(c) Temperature.
(d) Size of the object.
Ans: (c) Temperature.
3. Which of these is a conductor of heat?
(a) Wool.
(b) Paper.
(c) Copper.
(d) Wood.
Ans: (c) Copper.
4. What is the range of a clinical thermometer?
(a) 0°C to 100°C.
(b) -10°C to 110°C.
(c) 35°C to 42°C.
(d) 37°C to 45°C.
Ans: (c) 35°C to 42°C.
5. Which device is used to measure body temperature?
(a) Laboratory thermometer.
(b) Barometer.
(c) Clinical thermometer.
(d) Hygrometer.
Ans: (c) Clinical thermometer.
6. Which of these is an insulator?
(a) Copper.
(b) Wood.
(c) Iron.
(d) Silver.
Ans: (b) Wood.
7. What is the normal temperature of the human body?
(a) 36°C.
(b) 37°C.
(c) 38°C.
(d) 39°C.
Ans: (b) 37°C.
8. Heat from the sun reaches us due to:
(a) Conduction.
(b) Convection.
(c) Radiation.
(d) Vibration.
Ans: (c) Radiation.
9. In which of the following materials is heat primarily transferred by conduction?
(a) Solids.
(b) Liquids.
(c) Gases.
(d) Vacuum.
Ans: (a) Solids.
10. Conduction, convection and radiation are:
(a) processes through which heat transfers
(b) scales of temperature
(c) different forms of energy
(d) types of thermometer
Ans: (a) Processes through which heat transfers.
11. Which of the following materials is an insulator?
(a) Copper.
(b) Wool.
(c) Aluminium.
(d) Iron.
Ans: (b) Wool.
12. The normal temperature of human body is:
(a) 37 K
(b) 37°C
(c) 37°F
(d) All of the above
Ans: (b) 37°C.
13. Why do we feel more comfortable in light-coloured clothes during summer?
(a) They are more stylish.
(b) They absorb more heat.
(c) They absorb less radiation.
(d) They are made of lighter material.
Ans: (c) They absorb less radiation.
14. How does wool keep us warm in winter?
(a) It is a good conductor of heat.
(b) It traps air between the fibres.
(c) It allows heat to pass through easily.
(d) It reflects heat away from the body.
Ans: (b) It traps air between the fibres.
15. Solids transfer heat by:
(a) Conduction
(b) Convection
(c) Radiation
(d) All of the above
Ans: (a) Conduction.
16. What type of thermometer is used to measure body temperature?
(a) Clinical thermometer.
(b) Digital thermometer.
(c) Laboratory thermometer.
(d) Weather thermometer.
Ans: (a) Clinical thermometer.
17. The air from the sea is called the?
(a) Storm.
(b) Cyclone.
(c) Sea breeze.
(d) None of the above.
Ans: (c) Sea breeze.
18. Ventilators in rooms is due to:
(a) Conduction
(b) Convection
(c) Radiation
(d) All of the above
Ans: (b) Convection.
19. What happens to the water at the bottom of a flask when heated from below?
(a) It cools down.
(b) It evaporates.
(c) It rises.
(d) It condenses.
Ans: (c) It rises.
20. The normal temperature of the human body is?
(a) 25°C.
(b) 32°C.
(c) 37°C.
(d) 40°C.
Ans: (c) 37°C.
