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I turn on a TV. What type of energy transfer?
Electrical -> sound / light
I turn on a heater. What energy transfer?
Electrical transfers to thermal
What are the three types of thermal energy transfer?
Conduction, Convection and radiation
I touch a hot stove! Ouch
conduction
The sun makes me sweat.
radiation
The hot water moves around the boiling pot.
convection
What energy does a firefly have?
A firefly has LIGHT energy. It doesn't have heat energy
Absorption is about the colours: I CAN see / I CAN'T see
What happens when light refracts?
slows down and bends
What kind of energy?
heat
What kind of energy?
sound
What kind of energy can I hear?
sound energy
Hot air goes up or goes down?
goes up
Another name for thermal energy is ...
Heat energy
What colour is the light we see from a lamp or the sun?
White light
How many colours are there in white light?
7 colours (Rainbow)
Reflection or refraction?
refraction
Describe your clothes. Why are they that colour?
My red top absorbs, blue, orange, violet, indigo, green etc.
What does a mirror do when light hits it?
It bounces off and reflects
Describe this picture.
'absorption'
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