Energy and Fossil Fuels

58 terms by Narvaezkids

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a change from one form of energy to another

energy transformation

fuel

is a substance that provides a form of energy-such as heat, light, electricity, or motion

combustion

the process of burning a fuel

fossil fuels

are the energy-rich substance formed from the remains o once-living organisms

hydocarbons

are energy-rich chemical compounds that contain hydrogen and carbon atoms

petroleum

is another name for oil

refinery

a factory where crude oil is separated into fuels and other products

petrochemicals

are compounds that are made from oil

reserves

areknown deposits of coal that can be obtaines using current technology

inexhaustible resouce

is a resource that exists in such large supply that it can be considered almost limitless

hydroelectric power

is electricty produed by flowing water

biomass fuels

are fuels made from things that were once alive

geothermal energy

heat energy in Earth's interor from water or steam that has been heated by magma

renewable resource

a resource that is naturally replaced in a relatively short time

nuclear fission

is the splitting of an atom's nucleus into two smaller nuclei

nucleus

central core of an atom that contains the protons and neutrons

reactor vessel

is the section of a nuclear reactor fission occurs

fuel rods

the reactor contains rods of U-235

control rods

made of the metal cadmium butween the fuel rods

meltdown

fuel rods generated so much heat that they started to melt

nuclear fusion

is the combining of two atmoic nuclei to produce a single larger nucleus

efficiency

is the precentage of energy that is actually used to peform work

insulation

is a layer of material that helps block the transfer of heat between the air inside and outside a building

Why are fossil fuels considered to be nonrenewable?

long time to reform

what are three main fossil fuels?

oil, natural gas, coal

what is coal made out of?

plant remains

Which fossil furl is used most in the U.S?

oil

which fossil fuel produces the least pollution?

natural gas

what are some advantages of solar energy?

inexahaustible

what are some things powered by solar cells?

solar panels

name some other soures of renewable energy?

hydroelectric, biomass, geothermal

which source of renewable energy is widely used?

hydroelectric power

List some examples of biomass fuel?

corn, manuer

How is wind used as energy?

to make electricity

What is energy conservation?

to save energy

How can you reduce your use of energy?

using less water, turning off lights

How can you increase your energy efficiency?

not using as much energy

Explain how putting insulation in a building conserves energy?

it blocks wind so it is warmer

Name some energy efficient devices?

insulation

what are substances that provide energy as the result of a chemical change?

energy transformation

name some items that solar cells power?

calulators, lights, telephone,

what is the most widely used source of renewable energy in the world today?

hydroelectric energy

what is the resuly of using fossil fuels more rapidly than they are formed?

they run out quickly

The intense heat beneath earth's surfface can be a source of what type of energy?

geothermal energy

a fuel is a substance that providdes energy as a result of a chemical change.

false

In the United States, the fossil fuel that is present in the largest amount is natural gas.

True

Fossil fuels are considered to be nonrenewable because they form at a slower rate than that which they are used.

True

An active solar system captures the sun's energy, then uses fans and pumps to distribute heat.

False

A turbie that generates electricity when turned by moving water provides solar power.

False

The energy generated by heat from Earth's interior is called geothermal energy

True

fluorescent light bulb

efficient

drafty window

efficient

incandescent light bulb

not efficient

gasoline-powered car

not efficient

driving a car alone into the city at rush hour

not efficient

leaving lights on whenever you leave a room

not efficient

recycling aluminum soda cans

efficient

leaving your home without insulation

not efficient

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