Flashcards
Waves
Flashcards do conjunto (16)
- 1What is a wave?A wave is a periodic disturbance in a medium or space.
- 2What do the particles in a wave do?They oscillate about a fitted position.
- 3What are progressive waves?Progressive waves are waves that travel outwards from their source.
- 4There are two types of progressive wave, what are they?The two types of progressive wave are longitudinal and transverse.
- 5What is a transverse wave?This is a transverse wave. They have no horizontal movement. It's vibrations are at right angles to the direction of travel.
- 6What are longitudinal waves?The particles of a longitudinal wave are parallel (same direction) to the direction of propagation (travel) . There is no vertical movement. These waves have no amplitude.
- 7What are examples of transverse waves?Visible Light and any other radiation on the electromagnetic spectrum. So are water waves and S (a type of seismic wave) waves
- 8What are some examples of longitudinal waves?Sound waves and P (seismic waves caused by earthquakes and explosions) waves.
- 9What is the technical term for the vibrations go the same direction or 90 degrees t the direction of travel?The displacement of the medium (vibrations) are parallel or 90 degrees to the propagation of the wave.
- 10What is amplitude?Amplitude is measured from the centre line of a wave (the line going through it) to the crest (top) or the trough (bottom)
- 11What is Frequency?The frequency of a wave passing a point in a certain time. Usually this time is every second as 1 Hertz = 1 second. Sometimes kilohertz (1000 Hz) and megahertz ( 1,000,000 Hz) are required.
- 12What is wavelength?The wavelength of any wave is the distance between matching points of two neighbouring waves. It is the same no matter which matching points you use as long as they are neighbouring (for transverse) .
- 13What is wave speed?The speed the wave is travelling.
- 14What are the symbols for those key words?Amplitude = a
Frequency = f
Wavelength = ->
Wave Speed = v (for velocity)
- 15How do you work out the frequency, wave speed of wavelength of a wave?This is the equation triangle to use. V is velocity (wave speed and can be divided by frequency (f) or wavelength. The last two can be timed together to create the wave wave speed.
- 16How do you work out the speed distance or time of a wave?
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- GCSE Physics FlashCards sobre Waves, criado por Meriel ... em 17-06-2016.
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- Meriel ...
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