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Definition
| Oscillation is parallel to direction energy travels |
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| Oscillation is perpendicular to directionenergy travels |
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Definition
| Distance of a particle in the wave from its rest position |
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Definition
| Maximum displacement of a particle |
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Definition
| Number of oscillations in one second |
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Definition
| Time taken for one ocillation |
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| Distance along the wave to the next particle making the same oscillation |
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| The speed with which the energy of the wave travels |
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Definition
| Waves spread out after an object of opening with a size similar to the wavelength of the wave. |
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Definition
| Range of electromagnetic waves: radio, microwaves, infra-red, light, ultra-violet, X-ray, gamma |
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Term
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Definition
| Angle of incidence = Angle of reflection |
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Definition
| Waves change direction when passing from one medium to another |
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Definition
| A constant which tells how much a medium refracts |
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Term
| Total internal reflection |
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Definition
| When light in a more dense medium reflects at the boundary |
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Definition
| The angle of incidence where the angle of refraction is 90° |
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Definition
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Definition
| A signal which can be represented as a series of 1s and 0s. It can be perfectly copied. |
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Term
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Definition
| A continuously varying signal. It degrades as it is copied. |
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Definition
| Apparatus which represents oscillations by a trace on a screen |
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Term
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Definition
| Properties of a soundwave which are determined by frequency and amplitude |
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Term
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Definition
| All EM waves travel at 300 million m/s in a vacuum |
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Term
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Definition
| Broadcasting and communication |
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Definition
| Cooking and satellite transmissions |
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Definition
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Definition
| Optical fibres and photography |
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Definition
| internal structure of objects and medical applications |
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Definition
| Sterilising food and medical equipment |
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Definition
| internal heating of body tissue |
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