660 likes | 856 Views
Energy For Human Use. HOW MANY RESOURCES CAN PRODUCE ELECTRICITY?. What does Energy Resources mean?. "Energy Resources" is NOT the same thing as “Forms of energy" . "Types of energy" or “Forms of energy” means "kinetic energy", "chemical energy“. Thermal,
E N D
Energy For Human Use HOW MANY RESOURCES CAN PRODUCE ELECTRICITY?
What does Energy Resources mean? • "Energy Resources" is NOT the same thing as “Forms of energy". • "Types of energy" or “Forms of energy” means "kinetic energy", "chemical energy“. Thermal, • "Energy Resources" is about ways of getting energy so we can generate electrical power.
Energy Resources Renewable Resources Non-Renewable Resources • Natural resources that cannot be replaced or that can be replaced only over thousands or millions of years. • Natural resources that can be replaced over a relatively short period of time.
Energy Resources: Place each one in the correct heading. Renewable Resources Non-Renewable Resources Natural Gas Oil Inexhaustible Resources
Non – Renewable Resources Oil Coal Natural Gas Nuclear Oil, coal and Natural Gas are all Fossil Fuels
What is the original form of energy for coal and other fossil fuels?
What is the original form of energy for coal and other fossil fuels? THE SUN’s RADIANT ENERGY
Nuclear What part of the atom will split to release heat?
Nuclear What part of the atom will split to release heat? The NUCLEUS
Nuclear energy is stored in the ___________ atoms. Nuclear fusion changes the nucleus of the atom and releases ____________ and ___________.
Nuclear energy is stored in the _hydrogen_ atoms. Nuclear fusion changes the nucleus of the atom and releases _radiant energy__ and _thermal energy__.
Uranium atoms store the _______________ energy. The atoms are ________ to release _________ and _________. This process also released a toxic waste product called ____________.
Uranium atoms store the __nuclear_ energy. The atoms are _split__ to release _radiant__ and _thermal_. This process also released a toxic waste product called _radiation_.
http://www.youtube.com/watch?v=VrhzkoNU84g The plant is located about 90 miles southwest of Houston, near Bay City
Non – Renewable Resources Oil Coal Natural Gas Nuclear Oil, coal and Natural Gas are all Fossil Fuels
5 - Renewable Resources Water Hydroelectric Power Biomass Organic or Living Matter Wind Geothermal Earth’s Heat Solar
Inexhaustible Resources These three can be called Inexhaustible Resources or Renewable Resources. Wind Geothermal Earth’s Heat Solar
GEOTHERMAL =Energy from Earth’s heat Geo means _______ Earth Thermal means _______ HEAT
Pump in water…………………………………..to make STEAM…….
Now use the steam to turn a ___________ to turn a ____________ to make _________________. Geothermal HOT!
Now use the steam to turn a _TURNBINE__ to turn a GENERATOR_ to make _ELECTRICITY_. Geothermal HOT!
www.unitedstreaming.com A geothermal power plant in Nevada
Mechanical (1791-1867) Electrical Thermal
Michael Faraday(1791-1867) • He figured out you can spin a magnet in a coil of wire and it makes electricty....its called a “generator”.
Name the energy transformations in the picture. Kinetic Mechanical Electrical
Biomass or Biofuels Bio means _______
Biomass or Biofuels Bio means _LIFE_ These fuels are made from recently living matter…corn, sugar cane, garbage, algae…..
Harvesting biomass fuel Biofuels or biomass will also release _______________ into the atmosphere when _____________________. But it is less pollution than ____________________.
Harvesting biomass fuel Biofuels or biomass will also release CO2 Carbon dioxide into the atmosphere when _BURNED_. But it is less pollution than _FOSSIL FUELS.
http://www.youtube.com/watch?v=IR34Uh4wn8s http://www.youtube.com/watch?v=WAsMbRwMal0
Hoover Dam www.unitedstreaming.com
A continual flow of water makes HYDRO POWER a reliable source of energy as long as water is backed up behind the dam. What is reliable mean? Is this an advantage or disadvantage? Grand Coulee Dam
What is reliable mean? You can count on it. You can rely on it. Is this an advantage or disadvantage? ADVANTAGE Grand Coulee Dam
This structure is able toproduce electricity because…a. pressure caused the water to back up behind the spill way. b. friction is reduced as water flows through the turbine. c. gravity forces the water to spin the turbine connected to generator Turbine
This structure is able toproduce electricity because…a. pressure caused the water to back up behind the spill way. b. friction is reduced as water flows through the turbine. c. gravity forces the water to spin the turbine connected to generator Turbine
A wind turbine plant. Notice how big a turbine is! www.unitedstreaming.com
Name the Energy transformations from wind to electricity. ___________________ ____________________ ________________
Name the Energy transformations from wind to electricity. MECHANICAL (wind) MECHANICAL (turbine spins) ELECTRICAL(generator)