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level: Waves Intro

Questions and Answers List

level questions: Waves Intro

Question	Answer
State phase difference	How much a particle lags behind another particle Time delay/ lag between one wave and another
Describe the phase and behaviour of the waves, for a node when two waves are interacting together	Two waves that have opposite phase and cancel each other out
What wave type has the highest frequency?	Gamma
What wave type has the highest wavelength?	radio waves
What visible wave type has the highest frequency?	Violet
What visible wave type has the longest wavelength?	Red
What does a transverse wave look like?	transverse wave
What does a longitudinal wave look like?	longitudinal wave
State what amplitude is	A wave’s maximum displacement from the equilibrium position
Define wavespeed	Distance travelled by the wave per unit time
Define what wavelength is	The length of one whole oscillation
Define frequency	The number of complete oscillations passing through a point per second
State what a wave period is	Time taken for one full oscillation
Define phase	The location or timing of a point within a wave cycle
What are all the units of phase?	Radians Angles Fractions
What is the amplitude of a node?	0
What is an anti node?	the position of maximum displacement in a standing wave system
What is the amplitude of an antinode?	Max
What is the name of the wave type which has the second highest freuency?	X-rays
What wave type has the 3rd lowest frequency?	Infared
What wave types comes either side of micro?	Infared Radio
What wave type has the largest energy?	Gamma
What inrcreases together, energy, wavelength or freuency of a wave?	Energy Frequency
What are the requirements of a wave for it to be in phase?	Same frequency and wavelength
What can you say about the speed of all electromagnetic waves in a vacum	Same = 3 x 10 to the 8
How is polarisation evidence for the nature of transverse waves	Transverse waves oscilate perpendicular to the direction of travel
Give the equation for the fundamental frequency	f of n = (n/(2 x length))(Square root of(Tension/mass per unit length)) Where n is the harmonic (so 1, 2, 3 etc...)