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Physics Online
Physics Online - A level
A selection of videos aimed at post 16 physics students.
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Unit prefixes
This video introduces prefixes that are used to describe the size of a measurement. For example, the prefix m is called milli and represents 1/1000 = 0.001 = 10-3.
The following prefixes are described:
milli (m) - 10-3
micro (µ) - 10-6
nano (n) - 10...
Work done
This video states that if an object has a force applied to it and it moves in the direction of the applied force then work has been done.
The general formula W = Fs is described (work done is the force applied in the direction of movement).
An example where the force applied is at an angle to the...
Wave amplitude and intensity
Comparing two sine waves of different amplitudes, this video shows that the intensity of a wave is proportional to the square of the amplitude. The intensity is given I = P/A, i.e., power per cross-sectional area.
Wave properties - reflection, refraction, diffraction and polarisation
This video summarises the properties of waves, i.e., reflection, refraction, diffraction and polarisation using a free App called Ripple free by Paul Falstad. The App is very effective and versatile.
Pages
| Subject(s) | Science, Physics |
|---|---|
| Age | 16-19 |
| Published | 2010 to 2019 |
| Published by | |
| Direct URL | https://www.stem.org.uk/cxexyo |
