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Physics P1
- Creation of Universe
- CMBR
- Cosmic Microwave Background Radiation
- Cosmic Microwave Background Radiation
- Big Bang
- Red Shift
- Backed up by CMBR
- The Universe is still expanding
- Galaxies are moving further away
- Backed up by CMBR
- CMBR
- Light
- Passing into a different medium
- Bends towards the normal
- Slows down
- Bends towards the normal
- Telescopes
- Reflecting
- Clearly see further objects
- Uses mirrors
- Clearly see further objects
- Refracting
- Use lenses
- Use lenses
- Reflecting
- Passing into a different medium
- Electricity
- Efficiency = The amount of energy that is converted to useful energy
- Efficiency = The amount of energy that is converted to useful energy
- Formulae
- Wave speed = frequency x wavelength
- Wave speed = distance/time
- Electrical power = current x potential difference
- Cost of electricity = power x time x cost of 1 kilowatt-hour
- Power = energy used/time taken
- Efficiency = useful energy transferred by the device/total energy supplied to the device
- Wave speed = frequency x wavelength
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