Heat Transfer in Nature Class 7 MCQ Science Chapter 7

By tackling these Class 7 Science MCQ and Heat Transfer in Nature Class 7 Science Curiosity Chapter 7 MCQ Online Test with Answers, students will build a solid foundation in the topic.

Class 7 Science Chapter 7 Heat Transfer in Nature MCQ

Heat Transfer in Nature MCQ

Class 7 Science Chapter 7 MCQ Online Test

Question 1.
Which of the process of heat transfer is possible without medium?
(a) Conduction
(b) Convection
(c) Radiation
(d) All of the above
Answer:
(c) Radiation

Question 2.
Metal utensils are useful in cooking food because
(a) They are light weight
(b) They are good conductors of heat
(c) They are colourful
(d) They are cheap
Answer:
(b) They are good conductors of heat

Question 3.
When does the sea breeze blow?
(a) In night
(b) In day time
(c) Everytime
(d) Only during winters
Answer:
(b) In day time

Question 4.
Which kind of conduction of heat is shown by air?
(a) Good conduction
(b) Poor conduction
(c) Semi conduction
(d) Super conduction
Answer:
(b) Poor conduction

Question 5.
Substances like glass and wood are of heat
(a) Good conductor
(b) Poor conductor
(c) Semi conductor
(d) Super conductor
Answer:
(b) Poor conductor

Question 6.
Which process is not included in water-cycle?
(a) Evaporation
(b) Condensation
(c) Radiation
(d) Rain
Answer:
(c) Radiation

Question 7.
How the water stored beneath the Earth?
(a) Sedimentation
(b) Infiltration
(c) Rain
(d) Conduction
Answer:
(b) Infiltration

Question 8.
Which of the following is a process of heat transfer?
(a) Conduction
(b) Convection
(c) Radiation
(d) All of the above
Answer:
(d) All of the above

Question 9.
Which colour’s clothes are good to prevent from summer?
(a) Dark colours
(b) Black colours
(c) Light colours
(d) Red colours
Answer:
(c) Light colours

Question 10.
By which method heat is not transferred by ‘Bukhari’?
(a) Conduction
(b) Radiation
(c) Convection
(d) Transferred by all method
Answer:
(d) Transferred by all method

Heat Transfer in Nature Class 7 Fill in the blanks

Question 1.
Heat is transferred mainly by ______ in solids.
Answer:
conduction

Question 2.
Heat is transferred by ______ in liquids and gases.
Answer:
convection

Question 3.
Transfer of heat, in which no physical medium is needed, is called ______.
Answer:
radiation

Question 4.
In day time cooler air blows from sea to land on coast, is called ______.
Answer:
sea breeze

Question 5.
Hollow bricks are used to build houses. because ______ present in between them is poor conductor of heat.
Answer:
air

Question 6.
The substances which a Follow heat passes through them are called ______ of heat.
Answer:
good conductor

Heat Transfer in Nature Class 7 True or False

Question 1.
Heat is transferred by convection in solids. (True/False)
Answer:
False

Question 2.
Heat is transferred by actual movement of particles in conduction. (True/False)
Answer:
False

Question 3.
Water seepage is more in region of soil surface than in region of clay surface. (True/False)
Answer:
False

Question 4.
The movement of cooler air from land to sea is known as land breeze. (True/False)
Answer:
True

Question 5.
Medium is needed in heat transfer by radiation. (True/False)
Answer:
False

Heat Transfer in Nature Class 7 Match the following

Question 1.

‘Column ‘A’ (Process)	Column ‘B’ (Definition)
1. Conduction	(a) Heat transfer without medium
2. Convection	(b) Heat transfer by vibration of particles
3. Radiation	(c) Heat transfer by actual movement of particles

Answer:

‘Column ‘A’ (Process)	Column ‘B’ (Definition)
1. Conduction	(b) Heat transfer by vibration of particles
2. Convection	(c) Heat transfer by actual movement of particles
3. Radiation	(a) Heat transfer without medium

Question 2.

Column ‘A’ (Clothes/Object)	Column ‘B’ (Property related to heat)
1. Woolen clothes	(a) Keep warm by absorbing heat
2. Light coloured clothes	(b) Keep houses cold/warm because of poor conduction of heat
3. Dark coloured clothes	(c) Traps air in porcs and keep warm
4. Hollow bricks	(d) Reflect heat and provide more coolness

Answer:

Column ‘A’ (Clothes/Object)	Column ‘B’(Property related to heat)
1. Woolen clothes	(c) Traps air in porcs and keep warm
2. Light coloured clothes	(d) Reflect heat and provide more coolness
3. Dark coloured clothes	(a) Keep warm by absorbing heat
4. Hollow bricks	(b) Keep houses cold/warm because of poor conduction of heat