Physics U3 Section titles

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  • Created by: Ellie
  • Created on: 01-04-13 15:43

P3.1 MEDICAL APPLICATIONS OF PHYSICS

Physics has many applications in the field of medicine. These include the uses of X-rays and ultrasound for scanning, and of light for image formation with lenses and endoscopes.

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P3.2 USING PHYSICS TO MAKE THINGS WORK

Many things, from simple toys to complex fairground rides, are constructed from basic machines such as the lever. A knowledge of the physics involved in balancing and turning can help us to make these appliances work.

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P3.3 KEEP THINGS MOVING

Electric currents produce magnetic fields. Forces produced in magnetic fields can be used to make things move. This is called the motor effect and is how appliances such as the electric motor create movement. 

Many applicances do not use 230 volts mains electricity. Transformers are used to provide the required potential difference.

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