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17 Cards in this Set
- Front
- Back
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Wave |
Exists when there is a disturbance |
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Types of waves according to nature |
1. Mechanical wave, 2. Electro-magnetic wave, 3. Matter wave |
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Difference between Mechanical wave and Electro-magnetic wave |
Mechanical wave exists in a material medium while Electro-magnetic wave travels in a vacuum in the speed of light |
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What is the speed of light? |
3x10^8 m/s |
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Examples of Mechanical wave |
Rock, air, water, solids |
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Examples of Electro-magnetic wave |
Light, microwave, radio |
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What is Matter wave? |
Waves created by sub-atomic particles |
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What are the types of waves according to speed? |
Pulse which creates a single wave and Train which creates a continuous wave |
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What are the types of waves according to direction |
Transverse wave and Longitudinal wave |
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What is Transverse wave? |
Particles of the disturbed medium move in a direction perpendicular to the wave motion |
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What is Longitudinal wave? |
Particles of the disturbed medium in a direction parallel to the wave motion |
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What is a wavelength? |
Distance between identical points |
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Define amplitude |
Maximum distance above and below equilibrium value |
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What is the highest and lowest points of a transverse wave? |
Crest (highest pt) and trough (lowest pt) |
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What are the highest and lowest points of a longitudinal wave? |
Compression (highest pt.) and Refaction (lowest pt.) |
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What is the unit of frequency? |
Hertz (Hz) = 1/seconds |
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Define frequency |
Periodic/ simple motion that travels back and forth over a fixed path, returning to each position and velocity after a definite interval of time |
