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year 7 end of years > End Of Year Exam > Flashcards

End Of Year Exam Flashcards

1
Q

What is the rhyme for learning the types of energy

A

Most kids hate learning GCSE energy names

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2
Q

What does most kids hate learning GCSE energy names stand for

A

Magnetic kinetic heat light gravitational chemical sound elastic electrical nuclear

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3
Q

What is gravitational energy

A

Energy in raised objects

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4
Q

What is elastic energy

A

Energy in stretched objects

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5
Q

What is chemical energy

A

Energy stored in chemical bonds

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6
Q

What is Kinetic energy

A

Energy in moving objects

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7
Q

What is sound energy

A

Energy in sound waves

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8
Q

What is light energy

A

Energy in charged particles

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9
Q

What is heat energy

A

Energy vibrating motion in particles

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10
Q

What is magnetic energy

A

Energy in magnetic fields

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11
Q

What is electric energy

A

+/- charged particles

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12
Q

What is nuclear energy

A

Energy stored in atoms

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13
Q

What is energy

A

Energy is the ability to work

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14
Q

How do you do efficiency

A

Useful divides by total times 100

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15
Q

How do you work out power

A

Power equals work done divided by time taken

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16
Q

How do you find out the useful energy

A

The total energy divided by 100 times the efficiency

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17
Q

How do you work out work

A

Force times distance

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18
Q

How do you do efficiency

A

Useful divides by total times 100

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19
Q

How do you work out power

A

Power equals work done divided by time taken

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20
Q

How do you find out the useful energy

A

The total energy divided by 100 times the efficiency

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21
Q

How do you work out work

A

Force times distance

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22
Q

How do you do efficiency

A

Useful divides by total times 100

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23
Q

How do you work out power

A

Power equals work done divided by time taken

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24
Q

How do you find out the useful energy

A

The total energy divided by 100 times the efficiency

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25
Q

How do you do efficiency

A

Useful divides by total times 100

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26
Q

How do you work out power

A

Power equals work done divided by time taken

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27
Q

How do you find out the useful energy

A

The total energy divided by 100 times the efficiency

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28
Q

Energy you want is called what

A

Useful energy

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29
Q

Energy you don’t want is called what

A

Wasted energy

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30
Q

Total energy out = what

A

Used out+wasted out

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31
Q

True or false energy is always output in the type you want

A

False

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32
Q

What is wasted energy normally

A

Thermal or internal

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33
Q

A sankey diagram is a way of displaying what visually

A

Efficiency

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34
Q

What does the size of the arrow represent in sankey diagrams

A

The amount of energy

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35
Q

What is the unit for energy

A

Joules

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36
Q

How do humans get energy

A

Food

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37
Q

Was the carrot quick or slow to burn

A

Very slow

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38
Q

Was the crisp quick or slow to burn

A

Very quick

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39
Q

Why do crisps burn quickly

A

Because they have a high calorie count/ fat content/ oils

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40
Q

How come carrots burn slowly

A

Because they have a low calorie count

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41
Q

What is an energy resource

A

An energy resource is where the energy to generate electricity comes from

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42
Q

State some energy resources

A

Fossil fuels tidal Solar Wind and biofuels

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43
Q

What is a non renewable resource

A

One that is used faster than more of the energy resource can be formed one day the resource will run out

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44
Q

What is a renewable resource

A

It is when you can use them and create them it can be remade and used over and over again. It is made quicker than it is used

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45
Q

What are the 4 main non renewable energy resources

A

Gas oil coal and uranium

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46
Q

How efficient is coal

A

35 to 45% efficient

47
Q

What is an advantage of coal

A

Easy to use cheap

48
Q

What is a disadvantage of coal

A

Produces CO2 and not very efficient

49
Q

How efficient is wood

A

35 to 45%

50
Q

What is a advantage of wood

A

Cheap and quite a lot

51
Q

What is a disadvantage of wood

A

Produces carbon dioxide and not very efficient

52
Q

How efficient is biomass

A

35-65%

53
Q

What is an advantage of biomass

A

Cheap renewable

54
Q

What is a disadvantage of biomass

A

Produces carbon dioxide and smells bad

55
Q

How efficient is solar

A

10-40%

56
Q

What is an advantage of solar

A

Can be made in remote areas and no co2 at source

57
Q

What is a disadvantage of solar

A

Expensive and not very efficient

58
Q

How do you work out power

A

Work done divided by time taken

59
Q

What would happen if the sun stopped shining

A

No oxygen food will run out water will freeze it will become extremely dark

60
Q

How much energy comes from the sun

A

Seven types

61
Q

How does tidal power differ from wave power

A

Tidal is dependable and wave is not as much tidal is powered by the moon and wave is powered by the wind

62
Q

What energy does the book have as it falls to the ground

A

Kinetic and gravitational potential energy

63
Q

Name the fossil fuels

A

Coal gas oil

63
Q

What type of stored energy does a fuel have

A

Chemical

63
Q

And two energy resources that do not come from the sun

A

Geothermal and uranium

64
Q

What type of energy is the input energy for the gas boiler

A

Chemical

65
Q

State two disadvantages associated with using gas as an energy resource

A

Toxic gas and non renewable

66
Q

What is speed

A

How fast you or something or someone goes

67
Q

How do you work out distance

A

Speed times time

68
Q

How do you work out speed

A

Time divided by distance

69
Q

How do you work out time

A

Distance divided by speed

70
Q

What is the triangle for distance speed time

A

Distance on the top speed on the bottom left and time in the bottom right corner

71
Q

What are the units for speed

A

m/s

72
Q

What is the units for distance

A

Metres m

73
Q

What is the units for time

A

Second s

74
Q

A car covers 100m in 10s what is the speed of the car

A

10m/s

75
Q

A car is traveling at 20m/s over 15s how far would the car travel

A

300m

76
Q

A distance time graph can be used to show what

A

The speed of an object during its journey

77
Q

Each straight line shows what on a distance time graph

A

A different constant speed

78
Q

A horizontal line show what in a Dt graph

A

The object has stopped moving

79
Q

Gradient is the same as

A

Speed

80
Q

What are the two types of forces and say what they mean

A

Contact- act directly on a object

Non contact - act at a distance on a object

81
Q

What is the unit of weight

A

Newtons because it is s force

82
Q

When people talk about there weight they actually mean there….…

A

Mass

83
Q

True or false weight is the force you apply to the ground you can change that by going somewhere with less gravity like the moon

A

True

84
Q

What is mass measured in

A

Kilograms

85
Q

What is mass

A

The amount of matter in a object

86
Q

How can contact forces be measured

A

Using a Newton meter

87
Q

What does slapu stand for

A

Scale line axis points units

88
Q

How do you work out weight

A

Mass times gravity

89
Q

What is gravity on earth

A

9.8N/kg

90
Q

What is the triangle for weight mass and gravity

A

Weight on the top mass at the bottom left and gravity at the bottom right

91
Q

State a contact force

A

Air resistance

92
Q

State a non contact force

A

Static electricity

93
Q

What is the triangle for force mass acceleration

A

Force on the top mass at the left side and acceleration at the right side

94
Q

What is Newton’s first law

A

Unbalanced forces cause acceleration

95
Q

What is Newton’s second law

A

An objects mass effects how much force is needed to accelerate it

96
Q

What is Newton’s third law

A

Forces acting on a object come in pairs

97
Q

How do you work out acceleration

A

Change in speed divided by time taken

98
Q

What can a distance time graph be used to show

A

The speed of an object during a journey

99
Q

What is current

A

The rate of flow of charge through a circuit

100
Q

What is voltage

A

The potential difference across a circuit

101
Q

What is electricity

A

The flow of charge

102
Q

What is a conductor

A

Something that allows electricity to flow through it because it has lots of free electrons

103
Q

What is a insulator

A

Something with a high resistance it doesn’t have many free electrons so electricity finds it hard to flow

104
Q

Is the current shared in a series circuit or a parallel

A

I a parallel in series all the same

105
Q

Is voltage shared in a parallel of series circuit

A

In a series in parallel it is the same

106
Q

What is an advantage and disadvantage of a series circuit

A

Advantage cheap

Disadvantage if one component fails how circuit fails

107
Q

What is an advantage and disadvantage of a parallel

A

Can be used everywhere but is expensive

108
Q

How do you work out power

A

Energy divided by time

109
Q

What is the triangle for energy power time

A

Energy at the top power on the left and time on the right

110
Q

What is the units for power

A

Watts

111
Q

What is another way to work out power

A

Current times volt triangle is power at top current on left and voltage on the right

year 7 end of years (7 decks)

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