HARD
7th CBSE
IMPORTANT
Earn 100

Why do mud houses with thatched roof keep cool in summer and warm in winter?

Important Questions on Heat Flow and Temperature

EASY
7th CBSE
IMPORTANT
Learning Elementary Science for Class 7>Chapter 4 - Heat Flow and Temperature>EXERCISES>Q VI
Define convection as a mode of transfer of heat.
MEDIUM
7th CBSE
IMPORTANT
Learning Elementary Science for Class 7>Chapter 4 - Heat Flow and Temperature>EXERCISES>Q VI

Why is convection not possible in the solids?

EASY
7th CBSE
IMPORTANT
Learning Elementary Science for Class 7>Chapter 4 - Heat Flow and Temperature>EXERCISES>Q VI
What is natural ventilation?
HARD
7th CBSE
IMPORTANT
Learning Elementary Science for Class 7>Chapter 4 - Heat Flow and Temperature>EXERCISES>Q VI
Why do people prefer to wear dull clothes in winter and white clothes in summer?
HARD
7th CBSE
IMPORTANT
Learning Elementary Science for Class 7>Chapter 4 - Heat Flow and Temperature>EXERCISES>Q VI
While sitting around burning wood, by which mode of transmission of heat do you receive heat energy? Why do other modes of transmission of heat not play a significant role?
HARD
7th CBSE
IMPORTANT
Learning Elementary Science for Class 7>Chapter 4 - Heat Flow and Temperature>EXERCISES>Q VI
Which of the following containing the same amount of boiling hot water is likely to cool first and why?

(a) A beaker whose surface is covered with aluminium foil.
(b) A beaker whose surface is painted black

MEDIUM
7th CBSE
IMPORTANT
Learning Elementary Science for Class 7>Chapter 4 - Heat Flow and Temperature>EXERCISES>Q VI
How does radiation differ from conduction and convection for the transference of heat?
MEDIUM
7th CBSE
IMPORTANT
Learning Elementary Science for Class 7>Chapter 4 - Heat Flow and Temperature>EXERCISES>Q VI
What do you understand by the terms lower standard point and upper standard point?