AQA P2 E transfer by heating

how heat energy passes through solid materials

• conduction

• convection

• radiation

good insulators would.... (TICK 2)

• be heavy

• contain trapped air

• have a low thermal conductivity

• have a high thermal conductivity

• be made of metal

A higher thermal conductivity means what?

• conduct heat

• conduct heat better

• conduct heat less

• does not conduct heat

The amount of energy needed to change the temperature of 1kg of a material by 1 degree celsius is...?

• specific heat capacity

• specific heat

• heat capacity

• a lot!

two examples of home insulation are...

• loft insulation

• painting the door

• a dog

• double glazing

• a cat

If the energy useage is not useful it is, what?

• wasted

• conducted

• washed

• conducive

Global warming is caused by....

• methane

• carbon dioxide

• greenhouse gases

• leaving the light on

What type of heat transfer moves through empty space?

• radiation
• convection
• conduction

Which color is most effective for REFLECTING heat radiation?

• White

• Black

The tubes inside solar heating panels use the Sun’s radiation to warm water. Why are the tubes painted black?

• Black surfaces absorb radiation well

• Black surfaces conduct heat well

• Black surfaces emit radiation well

• Black surfaces reflect radiation well