one of the most fundamental parts of the universe; used to do work
what are the 6 forms of energy?
chemical, electrical, heat, light, mechanical, nuclear
type of technology that is more environmentally friendly than a similar, existing technology (definition part 1)
a continuously evolving group of methods, materials, and techniques for generating energy (definition part 2)
radiant light and heat that comes from the sun; the origin for renewable sources of power
3 types of energy that originate from solar energy?
wind, tidal, hydropower
what are the two types of solar energy technologies?
active and passive
produce solar power (conversion of sunlight to electricity)
active solar energy technology
constructing buildings that face the sun or selecting building materials that disperse light and retain heat
passive solar energy technology
device that converts light into electric current when struck by the sun; also known as a photovoltaic cell
field of technology relating to the use of solar cells to produce electricity
What are 2 modern examples of applied wind technology?
Bahrain World Trade Center and Eole Cap-Chat
a rotating machine that converts the KE of wind to generate electricity; NOT a windmill
results from the movement of air caused by temperature differences (the sun warms the air more in some places
type of power which uses tides and currents that are affected by wind
type of power that utilizes rivers fed by rainfall
What state leads the country in wind power production?
What causes tides?
gravitational pull by the moon and sun
What are 2 main methods that harness TIDAL POWER?
tidal stream systems and tidal ranges
make use of KE of moving water currents to power turbines, which convert turbine's mechanical power into electricity
tidal stream system
uses PE in height difference between high and low tides
What are two types of technology used in harnessing TIDAL RANGES?
tidal barrages and tidal lagoons
dams across the width of a tidal estuary (use reversible turbines to produce energy during the flow of water both ways)
areas of water that do not completely close off the estuary; use the differences in water levels outside and inside the body of water, using turbines to create power as water flows
There is currently no successful example in the entire world of _____?
a tidal lagoon
The primary technology utilized in tidal stream systems is ____?
____ has announced the development of a bio battery that generates electricity from ______ by using ______ as its catalyst, through the application of power generation principles found in ______ _______.
Sony, carbohydrates (sugars), enzymes, living organisms
What are 3 other types of renewable resources scientists are currently studying as sources of energy?
geothermal, hydrogen, biomass
What are the 2 types of energy stored in an atom's nucleus?
heat and light
What do nuclear power plants use as fuel?
What is the main reason why nuclear energy is debated as a "green technology"?
hazardous waste emissions
What is a current barrage system that has been producing power since 1966?
Rance tidal power plant in France
A system which uses a device consisting of a mirror and a tracking system (called a heliostat) to focus a large area of sunlight into a small beam
Concentrating Solar Power (CSP)
What are 3 examples of a CSP?
parabolic trough, Stirling dish, solar power tower
study of the control of matter on an atomic and molecular scale