Equations Flashcards
Distance travelled =
Average speed x time
Acceleration =
Final velocity - initial velocity
———-
Time
Weight in newton’s =
Mass in kg × gravitational field strength
Gravitational potential energy =
Mass × gravity × height
Kinetic energy
0.5 × mass × velocity²
Momentum in kg =
Mass × velocity (m/s)
how is velocity for wavelength calculated
Frequency (hz) x wavelength(m)
Efficiency =
Useful energy out ÷ total energy in
Resultant force =
Mass × acceleration
Stopping distance
Thinking distance + braking distance
whatare examples of Energy stores and transfers
Kinetic , gravitational, chemical , nuclear
Light , sound , electrical
Golden rule for energy
Energy can Not be created or destroyed, only transferred or stored
Renewable
Non Renewable
Geothermal , solar , wind , hydroelectric
Coal oil gas nuclear
Wave speed
Force x wavelength
Work done
Force x time