Describe the differences between transverse & longitudinial waves
longitudinal wave particles vibrate parallel to the direction of the propagation wave where as transverse wave particles vibrate perpendicular to the propagation of the wave.
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what is amplitude?
The amplitude of a wave is its maximum disturbance from its undisturbed position.
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What is wavelength?
The wavelength of a wave is the distance between a point on one wave and the same point on the next wave
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What is frequency?
The frequency of a wave is the number of waves produced by a source each second. It is also the number of waves that pass a certain point each second.
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What is time period?
the time needed for one complete cycle of vibration to pass a given point.
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What is the equation for time period?
period=1/f (frequency)
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What is the equation for wave speed, frequency and wavelength?
wavespeed=frequency x wavelength
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What is a method to measure the speed of sound waves in air?
A data logger can measure and record the time taken for sound to reach two microphones. Unlike the clap-echo method, these can be quite close together.
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What is the methof of measuring the speed of ripples on a water surface
You can use a ripple tank which sends pulses into the water creating waves.
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State the electromagnetic waves and examples
Radio waves e.g.television signals, microwaves e.g.mobile phones, infra red e.g.optical fibre communication, visable light e.g.seeing, ultra violate e.g.detecting forged bank notes, xrays e.g.medical images of bones and gamma rays e.g.killing cancer
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describe how frequency, wavelength and energy of the electromagnetic waves change as you move through the spectrum
at the start of the spectrum they have low frequencies, long wavelengths and less energy
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dangers of the electromagnetic spectrum
radio waves-can cause cancer, microwaves-can cause a cataract/ damage to the brain, infra red-overheating, viable light-retina damage, ultra violate- burn/skin cancer, xrays-cancer, gamma rays- cell damage/cancer
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Other cards in this set
Card 2
Front
longitudinal wave particles vibrate parallel to the direction of the propagation wave where as transverse wave particles vibrate perpendicular to the propagation of the wave.
Back
Describe the differences between transverse & longitudinial waves
Card 3
Front
The amplitude of a wave is its maximum disturbance from its undisturbed position.
Back
Card 4
Front
The wavelength of a wave is the distance between a point on one wave and the same point on the next wave
Back
Card 5
Front
The frequency of a wave is the number of waves produced by a source each second. It is also the number of waves that pass a certain point each second.
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