Show:
Conduction
Convection
Radiation
Conventional Energy Sources
Alternative Energy Sources
100
Transfer of energy through a substance, or between substances in contact.
What is conduction?
100
The transfer of thermal energy from one part of a fluid to another by a circulating current of faster-moving and slower-moving particles.
What is convection?
100
Radiation
What is the transfer of radiant energy by means of electromagnetic waves?
100
Conventional Energy Sources
What are thermal-electric, hydro-electric and nuclear power plants?
100
Wind, wave, solar, geothermal and biofuel enegy
What are alternative energy sources?
200
Reduces the conduction of thermal energy
What are insulators?
200
The circular flow of water particles in a warming pot of soup?
What is a convection current?
200
Examples of infrared radiation
What is curling irons, hot plates, candle flames and incandescent light bulbs?
200
Hydro-electricity, unlike nuclear and thermal electric energy is this type of energy resource.
What is renewable?
200
Fastest growing alternative energy source
What is wind energy?
300
Metals such as copper and aluminum are called this because they transfer energy easily.
What are conductors?
300
Large convection currents in the air
What is wind?
300
The two types radiation from the sun.
What are Infrared and ultraviolet ?
300
Provide 1/4 of the energy used to produce electricity, and about 2/3 of the energy used to heat residential and commercial buildings
What are fossil fuels?
300
Can be passive and active
What is solar energy?
400
Rock formed from magma that has cooled and solidified
What is igneous rock?
400
When warm, moist air rises higher, it spreads out and the remaining water vapour condenses, forming large clouds called.
What are thunderheads?
400
Forms of radiation absorbed by the earth's atmosphere
What is ultraviolet, x-rays and gamma rays.
400
Gases such as water vapour, carbon dioxide, methane and nitrous oxides that trap energy in Earth's atmosphere.
What are greenhouse gases?
400
A device that moves thermal energy from one location to another
What is a heat pump?
500
Rock that is formed when heat and pressure change existing rock
What is metamorphic rock?
500
Geological events that occur because of convection currents in magma
What are volcanoes?
500
These colours tend to absorb radiant energy better.
What are darker colours?
500
Increased production of greenhouse gases has effected Earth's energy balance and is causing this phenomenon.
What is global warming?
500
They are non-polluting, produce no dangerous products and are renewable
What are alternative energy sources?