End Of Year Exam Flashcards
What is the rhyme for learning the types of energy
Most kids hate learning GCSE energy names
What does most kids hate learning GCSE energy names stand for
Magnetic kinetic heat light gravitational chemical sound elastic electrical nuclear
What is gravitational energy
Energy in raised objects
What is elastic energy
Energy in stretched objects
What is chemical energy
Energy stored in chemical bonds
What is Kinetic energy
Energy in moving objects
What is sound energy
Energy in sound waves
What is light energy
Energy in charged particles
What is heat energy
Energy vibrating motion in particles
What is magnetic energy
Energy in magnetic fields
What is electric energy
+/- charged particles
What is nuclear energy
Energy stored in atoms
What is energy
Energy is the ability to work
How do you do efficiency
Useful divides by total times 100
How do you work out power
Power equals work done divided by time taken
How do you find out the useful energy
The total energy divided by 100 times the efficiency
How do you work out work
Force times distance
How do you do efficiency
Useful divides by total times 100
How do you work out power
Power equals work done divided by time taken
How do you find out the useful energy
The total energy divided by 100 times the efficiency
How do you work out work
Force times distance
How do you do efficiency
Useful divides by total times 100
How do you work out power
Power equals work done divided by time taken
How do you find out the useful energy
The total energy divided by 100 times the efficiency
How do you do efficiency
Useful divides by total times 100
How do you work out power
Power equals work done divided by time taken
How do you find out the useful energy
The total energy divided by 100 times the efficiency
Energy you want is called what
Useful energy
Energy you don’t want is called what
Wasted energy
Total energy out = what
Used out+wasted out
True or false energy is always output in the type you want
False
What is wasted energy normally
Thermal or internal
A sankey diagram is a way of displaying what visually
Efficiency
What does the size of the arrow represent in sankey diagrams
The amount of energy
What is the unit for energy
Joules
How do humans get energy
Food
Was the carrot quick or slow to burn
Very slow
Was the crisp quick or slow to burn
Very quick
Why do crisps burn quickly
Because they have a high calorie count/ fat content/ oils
How come carrots burn slowly
Because they have a low calorie count
What is an energy resource
An energy resource is where the energy to generate electricity comes from
State some energy resources
Fossil fuels tidal Solar Wind and biofuels
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
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
What are the 4 main non renewable energy resources
Gas oil coal and uranium
How efficient is coal
35 to 45% efficient
What is an advantage of coal
Easy to use cheap
What is a disadvantage of coal
Produces CO2 and not very efficient
How efficient is wood
35 to 45%
What is a advantage of wood
Cheap and quite a lot
What is a disadvantage of wood
Produces carbon dioxide and not very efficient
How efficient is biomass
35-65%
What is an advantage of biomass
Cheap renewable
What is a disadvantage of biomass
Produces carbon dioxide and smells bad
How efficient is solar
10-40%
What is an advantage of solar
Can be made in remote areas and no co2 at source
What is a disadvantage of solar
Expensive and not very efficient
How do you work out power
Work done divided by time taken
What would happen if the sun stopped shining
No oxygen food will run out water will freeze it will become extremely dark
How much energy comes from the sun
Seven types
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
What energy does the book have as it falls to the ground
Kinetic and gravitational potential energy
Name the fossil fuels
Coal gas oil
What type of stored energy does a fuel have
Chemical
And two energy resources that do not come from the sun
Geothermal and uranium
What type of energy is the input energy for the gas boiler
Chemical
State two disadvantages associated with using gas as an energy resource
Toxic gas and non renewable
What is speed
How fast you or something or someone goes
How do you work out distance
Speed times time
How do you work out speed
Time divided by distance
How do you work out time
Distance divided by speed
What is the triangle for distance speed time
Distance on the top speed on the bottom left and time in the bottom right corner
What are the units for speed
m/s
What is the units for distance
Metres m
What is the units for time
Second s
A car covers 100m in 10s what is the speed of the car
10m/s
A car is traveling at 20m/s over 15s how far would the car travel
300m
A distance time graph can be used to show what
The speed of an object during its journey
Each straight line shows what on a distance time graph
A different constant speed
A horizontal line show what in a Dt graph
The object has stopped moving
Gradient is the same as
Speed
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
What is the unit of weight
Newtons because it is s force
When people talk about there weight they actually mean there….…
Mass
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
What is mass measured in
Kilograms
What is mass
The amount of matter in a object
How can contact forces be measured
Using a Newton meter
What does slapu stand for
Scale line axis points units
How do you work out weight
Mass times gravity
What is gravity on earth
9.8N/kg
What is the triangle for weight mass and gravity
Weight on the top mass at the bottom left and gravity at the bottom right
State a contact force
Air resistance
State a non contact force
Static electricity
What is the triangle for force mass acceleration
Force on the top mass at the left side and acceleration at the right side
What is Newton’s first law
Unbalanced forces cause acceleration
What is Newton’s second law
An objects mass effects how much force is needed to accelerate it
What is Newton’s third law
Forces acting on a object come in pairs
How do you work out acceleration
Change in speed divided by time taken
What can a distance time graph be used to show
The speed of an object during a journey
What is current
The rate of flow of charge through a circuit
What is voltage
The potential difference across a circuit
What is electricity
The flow of charge
What is a conductor
Something that allows electricity to flow through it because it has lots of free electrons
What is a insulator
Something with a high resistance it doesn’t have many free electrons so electricity finds it hard to flow
Is the current shared in a series circuit or a parallel
I a parallel in series all the same
Is voltage shared in a parallel of series circuit
In a series in parallel it is the same
What is an advantage and disadvantage of a series circuit
Advantage cheap
Disadvantage if one component fails how circuit fails
What is an advantage and disadvantage of a parallel
Can be used everywhere but is expensive
How do you work out power
Energy divided by time
What is the triangle for energy power time
Energy at the top power on the left and time on the right
What is the units for power
Watts
What is another way to work out power
Current times volt triangle is power at top current on left and voltage on the right
