1. If an objects gets hot quickly when exposed to heat is called as ________ 2. The best conductor of heat is ______ 3. Materials that do not absorb heat quickly are known as _____ 4. What slows down the transfer of heat into the home in summer? 5. A fireman’s suit should be made of _______ 6. Winter coats contain pockets of air that keep heat from moving away from your body. This is an example of 7. Clothes of _____ colours absorb heat better than clothes of light colours. 8. Light coloured clothes are preferred during ______ season 9. Handles of saucepans and other cooking utensils are thermal ________ 10. Define thermal conductors and write two examples.
Answers
The questions have been answered accordingly as follows :-
1. If an object gets hot quickly when exposed to heat is called as conductor of heat.
2. The best conductor of heat is Copper.
3. Materials that do not absorb heat quickly are known as insulators of heat.
4. What slows down the transfer of heat into the home in summer?
Ans) To slow down the transfer of heat into the home in summers, it is required to paint the building with lighter colours, because they reflect back heat easily.
5. A fireman’s suit should be made of Nomex or Kevlar.
6. Winter coats contain pockets of air that keep heat from moving away from your body. This is an example of insulation.
7. Clothes of dark colours absorb heat better than clothes of light colours.
8. Light coloured clothes are preferred during summer season
9. Handles of saucepans and other cooking utensils are thermal insulators.
10. Define thermal conductors and write two examples.
Ans) Thermal conductors can be defined as elements which facilitate the transfer of heat, hence heating up the object immediately. Two examples of thermal conductors include copper wires and steel utensils.
1. If an objects gets hot quickly when exposed to heat is called as thermal conductor.
The heat energy is transferred with low energy in thermal conductor. The material that does not allow heat to pass easily is called insulator.
2. The best conductor of heat is copper.
It is a soft and malleable metal. It has both thermal and electrical conductivity.
3. Materials that do not absorb heat quickly are known as insulator.
The heat energy is transferred with low energy in thermal conductor. The material that does not allow heat to pass easily is called insulator.
4. To slows down transfer of heat into the home in summer:
The roof of the house is need to painted with white color and the roof is spared with water to reduce the heat adsorption.
5. A fireman’s suit should be made of Aramid Fibers.
Aramid Fibers have aromatic rings which reduce absorption of heat energy.
6. Winter coats contain pockets of air that keep heat from moving away from your body. This is an example of insulation.
The temperature is transferred through medium. When there are pockets of air then the transfer of temperature is reduced.
7. Clothes of black colors absorb heat better than clothes of light colors.
Black absorbs more heat energy compared to other colors.
8. Light colored clothes are preferred during summer season.
The summer is a season with high temperature. The black colored cloth absorbs more heat whereas the cloth with light colors does not absorb much heat.
9. Handles of saucepans and other cooking utensils are thermal insulators.
The material that does not allow heat to pass easily is called insulator. When the handles are insulated, there is less transfer of heat which protects heat.
10. Thermal conductors and two examples:
The heat energy is transferred with low energy in thermal conductor. Some of the thermal conductors are copper and aluminium.