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Y11 GCSE Physics > Energy Resources And Transfer > Flashcards

Energy Resources And Transfer Flashcards

1
Q

Types of energy

A 
Kinetic
Thermal
Chemical
Gravitational potential
Electrostatic
Magnetic
Nuclear
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2
Q

Kinetic

A

Anything moving has energy in its kinetic energy store

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3
Q

Thermal

A

Any object

The hotter it is the more energy it has in this store

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4
Q

Chemical

A

Anything that can release energy in a chemical reaction

Ie food and fuel

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5
Q

Gravitational potential

A

Anything stretched like springs and rubber bands

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6
Q

Electrostatic

A

Two charges that attract or repel each other

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7
Q

Magnetic

A

Two magnets that attract or repel each other

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8
Q

Nuclear

A

Atomic nuclei release energy from this store in nuclear reactions

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9
Q

4 ways transfer between stores

A

Mechanically
Electrically
By heating
By radiation

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10
Q

Mechanically

A

An object moving due to a force acting on it eg pushing
Pulling
Stretching
Squashing

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11
Q

Electrically

A

A charge moving through a potential difference
Eg
Charges moving round a circuit

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12
Q

By heating

A

Energy transferred from a hotter object to a colder object

Heating a pan of water on a hob

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13
Q

By radiation

A

Energy transferred by electromagnetic waves
Like light
Eg
Energy from the sun reaching earth as light

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14
Q

Principle of conservation of energy

A

Energy can be stored, transferred between stores, or dissipated
But can never be created or destroyed
The total energy of a closed system has no net change

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15
Q

Wasted energy

A

Most energy transfers involve some losses often by heating

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16
Q

Principle (wasted energy)

A

Energy is only useful when it is transferred from one store to a useful store

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17
Q

Wasted energy diagram

A
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18
Q

Formula

Efficiency of an energy transfer

A
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19
Q

Describing energy transfer (examples)

A
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20
Q

Sankey diagrams

A
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21
Q

3 Ways energy transfer by heating can happen

A

Radiation
Conduction
Convection

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22
Q

Thermal radiation

A

Transfer of energy by heating by infrared electromagnetic waves

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23
Q

Conduction and convection

A

Are energy transfers that involve the transfer of energy by particles

24
Q

Conduction

A

Main form of energy transfer by heating in solids

25
Q

Convection

A

Main form of energy transfer by heating in liquid and gases

26
Q

Emission of thermal radiation

A

Occurs in solids liquids and gases
Any object can both absorb and emit thermal radiation
Whether or not conduction or convection are also taking place

27
Q

The bigger the temperature difference the ….

A

Faster energy is transferred between the thermal energy stores of a body and its surroundings

28
Q

Thermal radiation involves

A
29
Q

Conduction

A
30
Q

Thermal conduction

A

Process where vibrating particles transfer energy from their kinetic energy store to the kinetic energy stored of neighbouring particles

31
Q

Experiment to demonstrate conduction

A
32
Q

Convection

A

The occurs when the more energetic particles move from a hotter region to a cooler region and transfer energy as they do

33
Q

Immersion heater example

A
34
Q

Energy transfers by heating

A
35
Q

How to investigate emission of IR radiation

A
36
Q

Work done

A

Energy transferred

37
Q

Principle work done

A

When a force moves an object through a distance
Work is done
On the object and
Energy is transferred

38
Q

Formula work done

A

Work done = force x distance moved

39
Q

Power

A

Rate of doing work
Ie
How much per second

40
Q

Power definition

A

Power is the rate at which energy is transferred

41
Q

Power
Work done
Time taken
Calculation

A
42
Q

Energy in kinetic energy store calculation

A
43
Q

Energy in gravitational potential energy store calculation

A
44
Q

Energy lost from GPE store equation

A
45
Q

Non renewable energy resources

A
46
Q

Advantages
Disadvantages
Fossil fuels

A
47
Q

Explain nuclear reactor + diagram

A
48
Q

Geothermal power

What is is / describe

A
49
Q

Wind farms facts

A
50
Q

Wave power facts

A
51
Q

How solar cells work

A
52
Q

Tidal barrages

Explanation

A
53
Q

Hydroelectricity

A
54
Q

How generating electricity using water

A
55
Q

How to find density

A
56
Q

Pressure calculation

A
57
Q

Pressure difference calculation

A

Y11 GCSE Physics (8 decks)

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