Edexcel GCSE Physics: P3 Quiz for triple physics, topics 5 and 6 4.5 / 5 based on 9 ratings ? PhysicsRadioactivityGCSEEdexcel Created by: Naomi ArnoldCreated on: 24-04-12 21:18 Why is there no lower temperature than absolute zero? At that point particles have no kinetic energy 1 of 7 What is the process called where blood is pumped upwards and out of the ventricle? Depolarisation 2 of 7 In positron/electron annihilation, how many gamma rays are produced, and in which direction are they emitted? Two, opposite directions to each other. 3 of 7 Some friends are talking about radiation therapy in palliative care. Which statement is correct? Palliative therapy doesn 4 of 7 What radiation properties make for the safest radiation exposure to humans? High Penetration and Low Ionisation 5 of 7 When light goes from travelling in air to travelling through, glass, it bends: Towards the normal 6 of 7 What combination of quarks makes a proton? Up Up Down 7 of 7
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