P2 Flashcards
how many energy stores are there
8
name all 8 energy stores
thermal, kinetic, gravitational potential, elastic, chemical, electromagnetic, electrostatic
how to work out efficiency
useful energy transferred / total energy transferred
what does renewable mean
it means that we have an unlimited source of it
what does un-renewable mean
it means there is a limited supply
examples of renewable energy sources
wind, water, sun and tides
example of non-renewable energy sources
fossil fuels
what is Englands main energy transporter
the national grid
what three wires are in a plug
neutral, live and earth wire
how to find energy transferred
energy transferred = power x time
what does the the neutral wire do
the blue wire completes the circuit
what does the earth wire do
the green and yellow wire is for safety
what does the live wire do
the brown wire carries the volts
which equation links distance travelled, speed and time
distance travelled = speed x time
how to work out acceleration
acceleration = change in velocity/time
