Energy Can Be Transferred and Transformed Flashcards
Can energy be destroyed?
No, only transferred or transformed.
What is energy transformation?
When energy changes from one form into another.
Give an example of an energy transformation.
Electrical energy in a microwave is transformed into heat energy to warm up food.
What is the structure of a energy flow diagram?
(Input)——–>(Output)
What are the by-products for energy outputs called?
Waste energy.
Where does energy come from?
The sun is our main source.
Give an example of an energy chain.
Light Energy(Sun)——>Chemical Energy(Plant)——>Chemical Energy(Humans)——->Heat and Kinetic Energy(Air)
What is the transfer of energy?
Energy moved from one object to another.
What devices need energy transfer’s to run?
A phone or laptop needs to transfer chemical energy from the batteries to the wires.
How does a TV recognise one’s command via the remote?
The remote sends a pulse of infrared light to the TV, which receives the signal and transfers it into electrical energy, which carries out the command.
What is infrared light?
An invisible type of light usually associated with heat.
Provide an energy chain for any device.
Mobile Phone:
Chemical energy—–>electrical energy——–>Kinetic energy——->light, sound and heat energy.
