Science core 0.0 / 5 ? SciencePhysicsGCSEEdexcel Created by: rebeccacthompsonCreated on: 18-05-15 17:08 Electricity Flow of charged particles 1 of 12 Current Rate of charge flowing 2 of 12 Voltage Electrical pressure 3 of 12 Hydroelectricity Generated by falling water where the water can be trapped in resevoirs 4 of 12 Geothermal energy Heat transferred from hot underground rocks, turns water into steam which can generate electricity in turbines 5 of 12 Natural gas Cleaner, contains less nitrogen, releases less carbon dioxide 6 of 12 What happens the radioactive energy released from power stations Sealed into concrete and glass to be buried 7 of 12 Electromagnetic induction Move a piece of electrical wire in a magnetic field and an electrical current will flow, this is called an induced current 8 of 12 Induced current can be increased by More turns on the coil, stronger magnets, moving the wire faster 9 of 12 Step up transformer Increases voltage, decreases current 10 of 12 Step down transformer Decreases voltage, increases current 11 of 12 Payback time Cost over saving per year 12 of 12
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