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Mind Maps: Methods of Heat Transfer | Science Class 7

The document Mind Maps: Methods of Heat Transfer | Science Class 7 is a part of the Class 7 Course Science Class 7.
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FAQs on Mind Maps: Methods of Heat Transfer - Science Class 7

1. What are the three methods of heat transfer?
Ans. The three methods of heat transfer are conduction, convection, and radiation.
2. How does conduction transfer heat?
Ans. Conduction transfers heat through direct contact between materials or substances. Heat is transferred from the hotter object to the cooler one.
3. Can heat be transferred in a vacuum through radiation?
Ans. Yes, heat can be transferred in a vacuum through radiation. Radiation does not require a medium to transfer heat and can occur in a vacuum.
4. What is an example of convection heat transfer in everyday life?
Ans. An example of convection heat transfer in everyday life is boiling water. The heated water rises to the top while cooler water moves down, creating a convection current.
5. How does heat transfer affect the temperature of an object?
Ans. Heat transfer can increase or decrease the temperature of an object by transferring thermal energy from a hotter object to a cooler one. This results in a change in temperature of the object.
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