Physics P1

Physics P1

Creation of Universe
1. CMBR
  1. Cosmic Microwave Background Radiation
2. Big Bang
3. Red Shift
  1. Backed up by CMBR
  2. The Universe is still expanding
  3. Galaxies are moving further away
Light
1. Passing into a different medium
  1. Bends towards the normal
  2. Slows down
2. Telescopes
  1. Reflecting
    1. Clearly see further objects
    2. Uses mirrors
  2. Refracting
    1. Use lenses
Electricity
1. Efficiency = The amount of energy that is converted to useful energy
Formulae
1. Wave speed = frequency x wavelength
2. Wave speed = distance/time
3. Electrical power = current x potential difference
4. Cost of electricity = power x time x cost of 1 kilowatt-hour
5. Power = energy used/time taken
6. Efficiency = useful energy transferred by the device/total energy supplied to the device

Resumen del Recurso

	Creado por WrightW hace alrededor de 10 años