AQA PHYSICS

• Difference between contamination and irradiation?

  Contamination: presence of unwanted substances on a surface or in a material. Irradiation: exposure to radiation.
• When was each subatomic particle and the nucleus discovered and by who?

  -Electron - 1897 - JJ Thompson

  -Nucleus - 1911 - Rutherford

  -Proton - 1920 - Rutherford

  -Neutron - 1932 - James Chadwick
• Important to remember - What are the typical speeds for walking , running and cycling?

  Walking - 1.5m/s

  Running - 3m/s

  Cycling - 6m/s
• IN NOTEPAD HOW TO FIND DISTANCE IN VELOCITY TIME GRAPHS
• The generator effect is when a current is induced in a wire which is experiencing a changing magnetic field while the motor effect is when a current carrying wire's magnetic field interacts with the magnetic field around it, resulting in a force being exerted on it, causing it to move. So basically generator effect is turning movement into current while the motor effect is turning current into movement.
• Diffraction is where when passing through a gap the waves will enter through the gap and then spread out further than their original state

  
• www.exampaperspractice.co.uk

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• https://exampapersplus.co.uk/gcse-physics-topics-what-you-need-to-know-for-the-exam/

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