Energy By the one who knows Work Energy is the ability to do work.
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Transcript of Energy By the one who knows Work Energy is the ability to do work.
Energy
By the one who knows
Work
• Energy is the ability to do work
Energy Conservation
• Energy can not be created or destroyed but only changed from one form to another
• Don’t tell the poor sods in Hiroshima and Nagasaki that.
Forms of Energy
• There are many types of energy and most actions are a conversion of energy from one form to another.
Solar Energy
• Energy we get from the sun as radiation
Kinetic Energy
• Energy a body has because it is moving
Potential Energy• The energy that something has
due to its position or condition• High up• Wound up
Chemical Energy
• Energy stored in fuel and food.
Electrical Energy
• Both from batteries and the mains and…
Nuclear Energy
• Energy contained in the atom (Holding the nucleus together)
Heat Energy
• Energy due to temperature of the body. (The movement of the molecules)
Sound Energy
• Any kind of noise or music is waves of compressed air.
• It needs a medium to travel in.
Light Energy• Another type of
wave that does not need a medium.
• Travels in straight lines
• Can be REFLECTED by a mirror
• And REFRACTED by a Lump of glass
Nuclear
Light
Sound
Chemical
Potential
Kinetic
Heat
Solar
Electrical
Electrical EnergyHeat Energy + Sound
Energy
Nuclear
Light
Sound
Chemical
Potential
Kinetic
Heat
Solar
Electrical
Chemical Kinetic + Sound Potential
Nuclear
Light
Sound
Chemical
Potential
Kinetic
Heat
Solar
Electrical
Chemical Heat Kinetic + Light + Sound
Your Turn
• i-pod• Motor car• Hydroelectric Dam• Light Bulb
Non-renewable• Fossil Fuels• Limited and usually made 100
million years ago• Coal- Pressed trees• Oil – dead sea creatures• Gas – rotted vapour of above
Renewable
• I’m tired you have to do this…….List all renewable energy sources….h/w p
Summary
