Buscar
Estás en modo de exploración. debe iniciar sesión para usar MEMORY

   Inicia sesión para empezar

level: Wave Parameters and Behaviours

Questions and Answers List

level questions: Wave Parameters and Behaviours

QuestionAnswer
what is a wavesomething that transfers energy from one point to another
what are the two types of wavestransverse longitudinal
what is a transverse wavewaves in which the direction of travel of energy is at right angles to the oscillation of the particles for instance, water waves
what type of waves are all of the waves in the EM Spectrumtransverse
what is a longitudinal wavewaves in which the direction of travel of energy is along the same direction as the oscillation of the particles for instance, sound waves
what is meant by wavelengththe distance from one position on a wave to the corresponding position on the next wave eg crest to crest or trough to trough
what is the symbol for wavelengthλ - lambda wavelength is measured in metres
what is meant by frequencythe number of waves which pass a point in one second. Measured in Hertz (Hz) and is given the symbol 'f'
What is meant by amplitudethe peak value of a waveshape; it is measured from the central line to the crest of the wave it can also be thought of the height of the wave from rest position -- in the middle when the wave is not moving up or down it is measured in metres and is given the letter 'a'
what is wave speeda measure of how quickly the waves travels from its source. Its value is the same as the distance covered by a wave in one second it is measured in metres per second and is given the symbol 'v'
what is meant by periodthe time taken for one complete wave to be produced also known as the time taken for one wave to pass a point it is measured in seconds and has the symbol 'T'
what is the crest of a wavethe topmost part of a wave shape
what is the trough of a wavethe lowest part of a wave shape
what is the formula/relationship between frequency and period of a waveT=1/f Period=1/frequency OR f=1/T frequency=1/period
what is the formula for frequency when given a number of waves and a timef=N/t
what is the formula for speedv=d/t
describe an experiment for measuring the speed of sound wavesset up two microphones connected to an electronic timer use a metre stick to set two microphones 1m apart at one microphone make a loud sharp noise when the sound reaches the first microphone the timer starts. When the sound reaches the 2nd microphone the timer stops. The timer will display the time taken Use v=d/t to calculate speed
what is the speed of sound in air340ms-1
what is the formula for wave speed?v=fλ where wave speed is measured in ms-1 frequency in Hertz wavelength in metres
what is the speed of light3x10^8ms-1
what is meant by diffractionthe property of a wave in which the wave is bent around an obstacle or through a gap
what factors affect extent of diffraction?width of the gap compared to the waves wavelength wavelength of the wave
how does width of the gap affect diffractiona narrow gap causes a lot of diffraction to occur (gap width less than the wave's wavelength) a wide gap causes little diffraction (gap width greater than the wavelength)
how does wavelength affect diffractionthe greater the wavelength of a wave, the greater the diffraction that occurs