P4 3.0 / 5 based on 1 rating ? PhysicsElectricityGCSEOCR Created by: maddieCreated on: 24-01-13 20:19 What makes it harder for the current to flow in a circuit? A higher resistance (Adding more resisters) 1 of 11 What is caused by friction build up? Static electricity 2 of 11 Do the positively charged particas ever move? No just the negatively charged ones 3 of 11 What pushes the current? The voltage force 4 of 11 What slows the current down? The risistance 5 of 11 What is released when atoms decay? Gamma rays 6 of 11 What is radio therapy? Cancer treatment uses gamma rays to kill living cancer cells 7 of 11 What else are gamma rays used for? Sterilisation of surgical instruments because they kill the microbes 8 of 11 What are 2 more uses of radiation? 1) Smoke detectors 2) Radioactive dating of rocks and other artifacts 9 of 11 What is half life The time taken for half the radio active atoms present to decay 10 of 11 What is nuclear fission Splitting Uranium Atoms which release energy, this is used to form heat 11 of 11
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