AQA P1b5

Keyword revision of AQA Physics - P1b section 5. Waves and Radiation.
What H is the units of frequency?. What T is the speed of EM waves in metres per second?. What M is the function you apply to the frequency and wavelength to calculate wave speed?. What G is the EM waves with the shortest wavelength?. What S is the process of using gamma rays to kill bacteria?. What R is another name for an x-ray?. What M can happen to living cells when they come into contact with low dosage x-rays or gamma rays?. What R is the part of the EM spectrum with the lowest frequency?. What V is the part of the visible spectrum with the shortest wavelength?. What T describes EM waves that pass through an object without being reflected or absorbed?. What B can be caused by exposure to UV radiation?. What W is the name of the molecule that absorbs microwave radiation, causing it to heat up?. What O are the type of fibres used in IR communication systems?. What S is an out of this world device used in microwave communications?. What M is the process of altering the amplitude or frequency of a signal wave?. What D is a signal wave consisting of a series of pulses with the value 0 or 1?. What A is a signal wave that varies continuously in amplitude or frequency?. What F is the number of waves passing a given point in a certain amount of time?. What A is half the distance between a peak and a trough of an EM wave?. What R is a circuit that is used to clean up a digital pulse?.

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