Energy Flashcards
What provides most of the energy on earth and is the original source of most energy sources? Also it originates from here
The Sun
What happens whenever anything happens?
An energy change
What shows that energy cannot be created or destroyed?
1st law of thermdynamics
What is the most useful energy transfer?
Efficiency
Can a device be 100% efficient?
no
What does a plant make from light energy
chemical energy
What is photosynthesis
plants make something from light
What does efficiency mean
useful energy transferred/total energy supplied
What do plants do with the suns energy?
Store it
How does the energy from the plant get passed on?
Plants are eaten by animals which get eaten by other animals
chain of energy?
Flow of energy from the sun goes to the leaf Caterpillar gets eats leaf then gets eaten by a bird which gets eaten by a fox
Car brakes lose a massive amount of energy, acceleration and deceleration are massive wastes of energy, F1 cars use a kinetic Energy Recovery System KERS
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What is the energy in the sun?
nuclear suision
Fusion
when things join together
fission
when things split apart
