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
2
Q
What does most kids hate learning GCSE energy names stand for
A
Magnetic kinetic heat light gravitational chemical sound elastic electrical nuclear
3
Q
What is gravitational energy
A
Energy in raised objects
4
Q
What is elastic energy
A
Energy in stretched objects
5
Q
What is chemical energy
A
Energy stored in chemical bonds
6
Q
What is Kinetic energy
A
Energy in moving objects
7
Q
What is sound energy
A
Energy in sound waves
8
Q
What is light energy
A
Energy in charged particles
9
Q
What is heat energy
A
Energy vibrating motion in particles
10
Q
What is magnetic energy
A
Energy in magnetic fields
11
Q
What is electric energy
A
+/- charged particles
12
Q
What is nuclear energy
A
Energy stored in atoms
13
Q
What is energy
A
Energy is the ability to work
14
Q
How do you do efficiency
A
Useful divides by total times 100
15
Q
How do you work out power
A
Power equals work done divided by time taken
16
Q
How do you find out the useful energy
A
The total energy divided by 100 times the efficiency
17
Q
How do you work out work
A
Force times distance
18
Q
How do you do efficiency
A
Useful divides by total times 100
19
Q
How do you work out power
A
Power equals work done divided by time taken
20
Q
How do you find out the useful energy
A
The total energy divided by 100 times the efficiency
21
Q
How do you work out work
A
Force times distance
22
Q
How do you do efficiency
A
Useful divides by total times 100
23
Q
How do you work out power
A
Power equals work done divided by time taken
24
Q
How do you find out the useful energy
A
The total energy divided by 100 times the efficiency
25
How do you do efficiency
Useful divides by total times 100
26
How do you work out power
Power equals work done divided by time taken
27
How do you find out the useful energy
The total energy divided by 100 times the efficiency
28
Energy you want is called what
Useful energy
29
Energy you don't want is called what
Wasted energy
30
Total energy out = what
Used out+wasted out
31
True or false energy is always output in the type you want
False
32
What is wasted energy normally
Thermal or internal
33
A sankey diagram is a way of displaying what visually
Efficiency
34
What does the size of the arrow represent in sankey diagrams
The amount of energy
35
What is the unit for energy
Joules
36
How do humans get energy
Food
37
Was the carrot quick or slow to burn
Very slow
38
Was the crisp quick or slow to burn
Very quick
39
Why do crisps burn quickly
Because they have a high calorie count/ fat content/ oils
40
How come carrots burn slowly
Because they have a low calorie count
41
What is an energy resource
An energy resource is where the energy to generate electricity comes from
42
State some energy resources
Fossil fuels tidal Solar Wind and biofuels
43
What is a non renewable resource
One that is used faster than more of the energy resource can be formed one day the resource will run out
44
What is a renewable resource
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
45
What are the 4 main non renewable energy resources
Gas oil coal and uranium
46
How efficient is coal
35 to 45% efficient
47
What is an advantage of coal
Easy to use cheap
48
What is a disadvantage of coal
Produces CO2 and not very efficient
49
How efficient is wood
35 to 45%
50
What is a advantage of wood
Cheap and quite a lot
51
What is a disadvantage of wood
Produces carbon dioxide and not very efficient
52
How efficient is biomass
35-65%
53
What is an advantage of biomass
Cheap renewable
54
What is a disadvantage of biomass
Produces carbon dioxide and smells bad
55
How efficient is solar
10-40%
56
What is an advantage of solar
Can be made in remote areas and no co2 at source
57
What is a disadvantage of solar
Expensive and not very efficient
58
How do you work out power
Work done divided by time taken
59
What would happen if the sun stopped shining
No oxygen food will run out water will freeze it will become extremely dark
60
How much energy comes from the sun
Seven types
61
How does tidal power differ from wave power
Tidal is dependable and wave is not as much tidal is powered by the moon and wave is powered by the wind
62
What energy does the book have as it falls to the ground
Kinetic and gravitational potential energy
63
Name the fossil fuels
Coal gas oil
63
What type of stored energy does a fuel have
Chemical
63
And two energy resources that do not come from the sun
Geothermal and uranium
64
What type of energy is the input energy for the gas boiler
Chemical
65
State two disadvantages associated with using gas as an energy resource
Toxic gas and non renewable
66
What is speed
How fast you or something or someone goes
67
How do you work out distance
Speed times time
68
How do you work out speed
Time divided by distance
69
How do you work out time
Distance divided by speed
70
What is the triangle for distance speed time
Distance on the top speed on the bottom left and time in the bottom right corner
71
What are the units for speed
m/s
72
What is the units for distance
Metres m
73
What is the units for time
Second s
74
A car covers 100m in 10s what is the speed of the car
10m/s
75
A car is traveling at 20m/s over 15s how far would the car travel
300m
76
A distance time graph can be used to show what
The speed of an object during its journey
77
Each straight line shows what on a distance time graph
A different constant speed
78
A horizontal line show what in a Dt graph
The object has stopped moving
79
Gradient is the same as
Speed
80
What are the two types of forces and say what they mean
Contact- act directly on a object
| Non contact - act at a distance on a object
81
What is the unit of weight
Newtons because it is s force
82
When people talk about there weight they actually mean there….…
Mass
83
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
True
84
What is mass measured in
Kilograms
85
What is mass
The amount of matter in a object
86
How can contact forces be measured
Using a Newton meter
87
What does slapu stand for
Scale line axis points units
88
How do you work out weight
Mass times gravity
89
What is gravity on earth
9.8N/kg
90
What is the triangle for weight mass and gravity
Weight on the top mass at the bottom left and gravity at the bottom right
91
State a contact force
Air resistance
92
State a non contact force
Static electricity
93
What is the triangle for force mass acceleration
Force on the top mass at the left side and acceleration at the right side
94
What is Newton's first law
Unbalanced forces cause acceleration
95
What is Newton's second law
An objects mass effects how much force is needed to accelerate it
96
What is Newton's third law
Forces acting on a object come in pairs
97
How do you work out acceleration
Change in speed divided by time taken
98
What can a distance time graph be used to show
The speed of an object during a journey
99
What is current
The rate of flow of charge through a circuit
100
What is voltage
The potential difference across a circuit
101
What is electricity
The flow of charge
102
What is a conductor
Something that allows electricity to flow through it because it has lots of free electrons
103
What is a insulator
Something with a high resistance it doesn't have many free electrons so electricity finds it hard to flow
104
Is the current shared in a series circuit or a parallel
I a parallel in series all the same
105
Is voltage shared in a parallel of series circuit
In a series in parallel it is the same
106
What is an advantage and disadvantage of a series circuit
Advantage cheap
| Disadvantage if one component fails how circuit fails
107
What is an advantage and disadvantage of a parallel
Can be used everywhere but is expensive
108
How do you work out power
Energy divided by time
109
What is the triangle for energy power time
Energy at the top power on the left and time on the right
110
What is the units for power
Watts
111
What is another way to work out power
Current times volt triangle is power at top current on left and voltage on the right
