Introduction

Students need to use the resources on the Transforming power student esheet to help them answer inquiries on the college student sheet. This teacher sheet offers you v some answers to the questions.

You are watching: Diagram the energy conversions that occur when coal is formed

Forms the EnergyHow perform scientists define energy?They define energy together the capacity to provide off warmth and/or perform work.

What is the “law of conservation of energy”?Energy is neither created nor destroyed.

According come the regulation of preservation of energy, energy that is used does no disappear. What wake up to energy?It is transformed right into another form of energy.

What walk it median when we say that power transformations space not “efficient”?Some power is always changed into an additional form; that is, not every one of it is convert from one kind into another. There is constantly a change to create heat.

What is the difference in between renewable and also nonrenewable energy resources?Renewable power sources space replenished in time conversely, nonrenewable energy sources are not so their offers are limited.

Why room solar energy and also wind energy thought about renewable power resources?They are constantly available.

Why space petroleum, coal, and also natural gas taken into consideration nonrenewable energy sources?They are only available in quick supply and also we can’t conveniently replace the energy source that we have used.

Why is electricity thought about a secondary energy source?It is an energy carrier and we have to use another source of power to make it.

In the united States, what is the number one energy source for make electricity?Coal.

Is that a renewable or nonrenewable energy source?It is nonrenewable.

What is Electricity?What are the three simple parts to an atom?Protons, neutrons, and also electrons space the basic parts.

How is electrical power created?It is produced by moving electrons indigenous one atom to another.What carry out spinning wind turbines in strength plants do to do electricity?In a generator, they revolve coils the copper wire inside electromagnets. This causes the electrons of the copper cable to move.

Draw and also label the actions that electrical energy takes to walk from the power plant to her home.High power transmission present → Transformer to boost power→ distribution wires to communities → Transformer to alleviate power→ Outlet → strength cord the appliance→ ago to outlet → strength lines.

Converting Coal into Electricity

Step

Types of power Used

1

A machine called a pulverizer grinds the coal right into a good powder.

Mechanical energy, movement energy

2

The charcoal powder mixes with warm air, which help the charcoal burn more efficiently, and the mixture move to the furnace

Heat energy, activity energy

3

The burning coal heats water in a boiler, producing steam.

Chemical energy, warmth energy

4

Steam released from the boiler powers an engine called a turbine, transforming heat power from burning coal into mechanical energy that spins the wind turbine engine.

Heat energy, mechanical energy, movement energy

5

The kinetic power of the spinning turbine does job-related in a generator, a machine that turns this work-related into electric energy. This happens as soon as magnets within a copper coil in the generator spin.

Mechanical energy, activity energy, electric energy

6

A condenser cools the heavy steam moving through the turbine. As the steam is condensed, that turns back into water.

Motion energy, chemical energy

7

The water return to the boiler, and also the cycle starts again

Motion energy

Is every one of the chemical power stored in coal converted to electrical energy?No.

Explain how some that the energy of coal is changed in the procedure generating electricity.

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When charcoal is burned, some of the energy is adjusted to heat. In every one of the steps where mechanical power is used, several of the power is always changed to heat.