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Why is the body of the pan metallic and the handle plastic? (2)
How does a light coloured fridge keep the contents cold? (1)
Why is it important that the air is trapped in any type of insulation (1)
Why is the heating element placed at the bottom of a kettle? (2)
Why are a lot of toasters silver? (1)
How do foam containers keep food warm?. (3)
Explain how cavity wall insulation keeps houses warm (3)
Why can these people float in the air? (2)
Why is the bottom of the pan made of copper instead of steel? (1)
Why is the back panel of the fridge black? (2)
Complete the table.
How does the heat get through the pan? (3)
The bottom of the pan is hot. How does the heat get to the egg through the water? (2)
How does a puffa jacket keep you warm? (3)
Why do feet feel warmer on carpets than laminate flooring (3)
How does a solar cooker work? (1)
REVISION Why is the body of the pan metallic and the handle plastic? (2)
2.3 Transfer of Energy as heat can be controlled. Helpful animations
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© Boardworks Ltd of 31 KS4 Physics Heat Transfer.
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What is heat? answer A form of energy.
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Prepared By: Shakil Raiman. Sum of the kinetic energy of the molecules of an object is called thermal energy or heat energy. All substance above “absolute.
21/03/2016 Heat and Temperature. 21/03/2016 Heat and Temperature This cup of coffee will ____ ____ because it is _____ ____ heat energy into the surroundings.
A Form of energy that is related to the K.E. of molecules. The motion of molecules produces heat. The more motion, the more heat is generated.
* Cars * Bicycles * Tools * Toys * Wires * Some metals are very hard and strong. * Metals conduct heat and electricity well.
Heat Transfer Chapter 4. Three Types of Heat Transfer Conduction Convection Radiation Heat always travels from areas that are warmer to areas that are.
Energy & Environment. Concentrating the sun rays Converting the light energy into heat energy Trapping heat Using certain materials for their beneficial.
Homes now and then. This is a washtub and washboard. People would put their dirty clothes into the washtub and rub them on the washboard to clean them.
If a cup of hot coffee and an ice cube were left on the table in this room what would happen to them? Why? The cup of coffee will cool until it reaches.
1. 2 Absorbers - take in the energy Reflectors - reflect the energy Examples: Dark objects like black t-shirts and roof tops Examples: Shiny materials,
P1b(i) Keeping Homes Warm You will learn about: The insulating properties of air How energy is transferred by conduction, convection and radiation How.
© Boardworks Ltd of 32. © Boardworks Ltd of 32.
Engineers, what is wrong here?. There are penguins all over the world, not just in Antarctica. The red dots indicate where penguins live. There are penguins.
P.1 Book 1 Section 4.3 Radiation Frost Energy transfer by radiation Emission and absorption of radiation Check-point 4 Examples of heat transfer by radiation.
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Thermal energy Heat is another word for thermal energy. Heat Transfer warm cold equilibrium Heat energy always moves from warm to cold, until the system.
HEAT ENERGY What is heat? A form of electromagnetic energy, measured in joules or calories. Molecules move about more or vibrate and take up more room.
Understanding Heat Transfer,. Heat Transfer Heat always moves from a warmer place to a cooler place. Hot objects in a cooler room will cool to room temperature.
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