Heat Transfer Methods
Physics ⇒ Heat and Thermodynamics
Heat Transfer Methods starts at 7 and continues till grade 12.
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See sample questions for grade 7
Describe how a thermos flask keeps liquids hot or cold for a long time.
Describe how heat is transferred from the Sun to the Earth.
Describe the difference between conduction and convection.
Explain why a black car gets hotter than a white car when parked in the sun.
A pot of water is heated on a stove. The water at the bottom gets hot and rises, while cooler water sinks. What is this process called?
Describe how a thermos flask keeps liquids hot or cold for a long time.
Explain why a black car gets hotter than a white car when parked in the sun.
Explain why the handle of a metal pan gets hot when cooking.
Which of the following is an example of heat transfer by conduction?
(1) A radiator warming a room
(2) A metal spoon in hot tea becoming warm
(3) The sun heating the sand
(4) Hot air rising above a heater
Which of the following is an example of heat transfer by radiation?
(1) Boiling water
(2) The Sun heating the Earth
(3) Touching a hot iron
(4) Warm air rising
Which of the following is NOT a good conductor of heat?
(1) Silver
(2) Copper
(3) Plastic
(4) Aluminum
Which of the following is NOT a method of heat transfer?
(1) Conduction
(2) Radiation
(3) Reflection
(4) Convection
Fill in the blank: _______ is the transfer of heat by the movement of fluids (liquids or gases).
Fill in the blank: _______ is the transfer of heat through a solid material.
Fill in the blank: The process by which heat is transferred from the Sun to the Earth is called _______.
Fill in the blank: The transfer of heat by electromagnetic waves is called _______.
True or False: Air is a good conductor of heat.
True or False: All objects emit some form of radiation.
True or False: Conduction is faster in metals than in wood.
True or False: Dark-colored objects absorb more radiant heat than light-colored objects.
