Advertisements
Advertisements
Question
What will absorb heat?
Steel spoon
Options
Will absorb heat
Will not absorb heat
Solution
Will absorb heat
Explanation:
Yes, a steel spoon will absorb heat quickly because steel is a good heat conductor.
- Good heat conductor: Steel (a metal) absorbs and conducts heat quickly.
- Heats up quickly: If a steel spoon is kept in contact with hot water or fire, it heats up quickly.
- Cools down quickly: Loses heat quickly, when kept in a cold place.
RELATED QUESTIONS
Name the three modes of transfer of heat.
Draw a labelled diagram of a thermo flask. Explain how the transfer of heat by conduction, convection and radiation is reduced to a minimum in it.
Give scientific reason.
Dew drops form on the grass in winter.
If you apply some heat energy to a substance, which of the following can take place in it?
The amount of heat gained by a substance is equal to the product of its mass and latent heat.
A device in which the loss of heat due to conduction, convection and radiation is minimized is ______.
We can absorb heat by rubbing two surfaces of some substances.
A circular metal loop is heated at point O as shown in Figure 4.6.
(i) In which direction would heat flow in the loop?
(ii) In which order are the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other?
What is heat energy?
Explain the following effects of heat.
Chemical changes
