What is Energy?
- Energy- Everything we do like jump shot, baking cookies, and turning on the light.
- There are two types of energy
- 1.Stored energy- also called as potential energy, food you eat.
- Your body will store energy when you are eating and use it when you run, jump, play or etc.
- 2.Working energy- also called kinetic energy, when you are running, jumping and playing.
- Faster run,-more kinetic energy you have.
- Same as molecules, atoms and waves of sound and light.
How is Energy generated?
- Biomass Energy
- Renewable
- Homegrown energy source
- Includes tress, farm crops, manure, plants and landfill gas.
- US biomass create 34% of all energy we use.
- Coal
- Creates more than half electricity by Americans.
- 1/4 of coals are from United states.
- Recoverable oil
- Gas
- Burned to used-clean burning
- natural gas became the fuel of choice for new power plants.
- became Increasingly popular
- use gas turbines and combustion engines ti generate electricity
- Geothermal
- underground reservoirs of stream, hot water and dry rocks
- It is produce electricity by extracting hot water or steam
- Hydrogen
- actually hydrogen is energy carrier
- but it can create power.
- It is environmentally clean fuel.
- = Create electricity when hydrogen and oxygen converts to the water
- Nuclear Power
- generates energy similar to fossil fuel plant
- Nuclear power generates by heat
- Solar power
- It is available anywhere on earth
- It provides heat, cooling, lighting, mechanical power, hot water heater, etc
- Solar panel is the flat model used to provide energy by using this.
- Water
- can be used to generate electricity
- does not pollute earth(little)
- it is renewable
- if u dam river or ocean it will make fish or animals that are living in the water.
- Wind
- It is form of solar energy.
- It generates energy by mechanical power.
What is electricity?
- Is the flow of electrical power or change.
- secondary energy source
- what we get after we convert primary sources
- coal
- natrual gas
- oil
- nuclear power
- and etc
- Primary sources- can be renewable or non-renewable
- Electricity- neither renewable nor non-renewable
- Green/Alternative Energy in South California
- In California 1.6% electricity are renewable energy
- E.g wood
- black
- liquor
- waster
- landfill methane
- etc.
- California have been using hydropowder to generate electricity since 1942
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