Flashcards
Science physics transverse and longitudinal waves
Cards in this deck (5)
- 1Waves-there are two types of waves transverse waves and longitudinal waves
-ripple on the surface of water is and example of transverse waves
-sound waves travelling in air is longitudinal waves
-all waves travel energy from one place to another
-ripples transfer kinetic energy. Sound waves transfer sound energy - 2Transverse waves-the wave moves up and down these movement are called oscillation
-in transverse wave the oscillation is perpendicular to the direction of energy transfer
-the word perpendicular means at a right angle
-in a transverse wave the oscillation are up and down but the fierce toon of energy transfer is side ways. - 3Longitudinal waves-sound waves travel as particles in the air move from side to side
-air particles close together is called compressions and the air particles far apart are called rarefactions.
-in a longitudinal wave the oscillations are parallel to the directions of energy transfers
-all longitudinal waves need a medium to travel in e.g air, a liquid or a solid
-not all transverse waves require a medium
-for both ripple on a water surface and sound waves in air it’s the wave that travels not the water or air. - 4Properties of a waveAmplitude - the amplitude of a wave is the maximum displacement of a point on a wave away from its undisturbed position
-the amplitude is basically the furtherest point the wave vibrates from its undisturbed position
-wavelength
The wavelength of a wave is the distance from a point of the wave to the equivalent point on the adjacent wave
If we take a point of the wave e.g the top then measure the distance to the same point on the next wave that is the wavelength.
Symbol for wavelength is lambda to measure wavelength you have to measure from one compression to another and one rarefaction to another. - 5FrequencyFrequency is the number of waves passing a point each second
Unit of frequency is hertz (hz)
1 hz= 1 wave per second period
The period is the time on seconds from one wave to pass a point
Period (s) =1/frequency (hz)
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- Flashcards on Science physics transverse and longitudinal waves, created by iffat Ahmed on 28/11/2018.
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- iffat Ahmed
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