Physics
- Created by: Jack Youren
- Created on: 18-02-13 14:03
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- Physics
- Energy Transfers
- Radiation
- Infrared Radiation
- Radio Wave Lengths
- Microwaves
- Radiowaves
- Convection
- Conduction
- Speficic Heat Capacity
- Sankey Diagrams
- Efficiency
- Usefull Energy divided by Total x Energy x 100 = Effieciency
- Joules= Energy
- Voltmeter= Volts
- Ammeter= Currents
- Effieciency- Total energy supplied to the device
- National Grid
- Step-up transformers increase the voltage, which means more electricity gets to the house
- Step-down transformers reduce the voltage and spreads it to other houses
- Generating Electricity
- Fuel- a power for cars, planes, machinary- e.g. Desiel, petrol, oil, biofuels, coal, food etc.
- Coal, oil and gas are called "fossil fuels" which means they were made from fossils
- Non- renewable: coal, gas & oil
- Renewable: wind, solar, water (waves, tides) & biofuels
- Transverse Waves
- Types of waves: shock, heat, hand, transverse, E.M, tidal, mexican, sound & sea waves
- Wave speed= m/s
- Transverse waves are when the displacement is at right angles to the direction of the wave
- wave (v)= frequency (f) x wavelength
- Energy Transfers
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