Energy Flashcards

0
Q

Unit of energy

A

Joule

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1
Q

Energy

A

Is the ability to do work

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2
Q

Potential energy

A

Stored energy waiting to do work

Such as Cole spring elastic band

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3
Q

Kinetic energy

A

The energy that moving thing have

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4
Q

Heat Energy

A

Heat energy because it to move

Hot air to an air ballon to rise ,hate in a steam engine moves trains

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5
Q

Light energy

A

Light energy can move in crooked radiometer r solar powered calculator, plants use light to make food

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6
Q

Sound energy

A

If you head near a loudspeaker you can feel the air that is being moved by sound energy

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7
Q

Electrical energy

A

This energy can make things like ex tractor fans to move.it is the flow of electrons around the a circuit

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8
Q

Chemical energy

A

This type of rnegy

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9
Q

Nuclear energy

A

This energy is stored in the nucleus of atoms ,the enemy that comes off the Sun

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10
Q

Law of conservation energy

A

Energy cannot be created or destroyed it can only be changed or converted from one to the other

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11
Q

Circuits

A

A circuit is made up of a battery, some wires and a different types of equipment and can be used to observer energy conversions

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12
Q

Hydroelectric

A

Dam holds back water and then let’s it drop onto a wheel to turn the generates

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13
Q

Wind energy

A

Wind can turn wind mills which generate electricity

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14
Q

Wave energy

A

The movement of large floats by the energy in the wave

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15
Q

Biomass

A

Some plants produce oils and others can produce fuels such as Alcohol and methane gas

16
Q

Geothermal

A

The temperature underground increases with depth this heat can be used th heat water in some circumstances

17
Q

Advantages of Renewable energy

A

Does not run out
Does not cause pollution
Fairly Safe to use

18
Q

Disadvantages of renewable

A

Expensive to set up

More research needs to be done into how to make them good source of energy

19
Q

Non renewable

A

Non renewable energy connotation be replaced and run out

20
Q

Fossil fuels

A

Oil ,coal, gas are all example of fossil fuels
Formed over million years ago from Bodies of dead plants and animals
Once burned are gone

21
Q

Disadvantage of fossil fuel

A

They cause pollution and damage to the atmosphere

22
Q

The sun as a source of all our energy

A

The sun heats the ocean and air creating wind and solar currents
Allows plants to make food

23
Q

Nuclear energy

A

When the nucleus of an atom is slit large amounts of energy are released from it

24
Q

Advantages of nuclear energy

A

. In medicine radiation kills cancer cells
. Radiation can be used to sterilise food
. Radiation can produce electricity
. It will not run out like fossil fuels

25
Q

Disadvantages of nuclear energy

A

The waste produce of nuclear are radioactive and are harmful to humans
The waste products last in the environment for a very long

If a nuclear energy may get out of control a huge explosion may happen