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WorksheetsAQA P2 E transfer by heating
Total questions: 18
Worksheet time: 25mins
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
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
Four wet towels are hung out to dry as shown.
Which towel dries most quickly?
What is the correct equation for specific heat capacity (c)?
E = m x ΔT
E = m x c / ΔT
E = m x c x ΔT
E = c
Which of the following would reduce the dissipation of energy from a house to the surroundings?
insulation
large walls
thin walls
metal walls
What is an insulator?
Something that keeps objects warm
Something that stores thermal energy
Something that slows the transfer of thermal energy
Something that allows the transfer of thermal energy
People sometimes put foil behind radiators...
...to reflect the infrared radiation back into the room
...because who wouldn't want a bit of bling behind their radiator?
..to absorb the dissipated heat
...to stop the walls getting damaged by the heat
Which will heat up faster?
copper
granite
iron
basalt
Which will heat up slower?
water
lead
granite
iron
