Lesson 11: Stored Energy. Objectives: E nergy can be stored in food, fuels and electrical cells Describe how electricity transfers energy . Sort the cards at your table into the ones that store energy and the ones that don’t. Where does all of our energy come from?.
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Energy can be stored in food, fuels and electrical cells
Describe how electricity transfers energy
Sort the cards at your table into the ones that store energy and the ones that don’t.
Look on page 96 & 97 in the green science 14 textbook
Summarize in your own words how the world gets it’s energy from the sun.
Animals, such as humans, need to eat to live, grow and reproduce ...
... and we eat things that grow as a result of sunshine ...
... giving us this food chain.
chemical (stored) energy(in the plant)
chemical (stored) energy(inside the animal)
light energy(from the sun)
This is an energy transfer diagram.
It shows where energy is transferred to and from, and what causes the transfer. Here, the plant transfers energy from light into energy in chemicals it can use
Electrical energy comes from ...
light energy insolar cells
kinetic energy indynamos
chemical energy in thefossil fuels used inpower stations
chemical energy storedin batteries
Electrical energy can change to ...
kinetic (movement) energy
Here, the fossil fuel transfers stored chemical energy to electricity to light/sound/ heat.
10.1b Electrical energy
Most power stations use fossil fuels to make electricity ...
... which is transmitted through cables ...
... which we can then use in our homes.
light energy (or sound, movement or heat energy)
stored chemical energy
The energy transfer diagram for a runner wouldlook like this:
The energy transferred is sometimes non-useful