waves

what do waves transfer

waves transfer energy without transferring matter

what are transverse waves

direction of motion of particles is perpendicular to the motion of the wave

what are longitudinal waves

direction of motion of particles is parallel to the motion of the wave

describe the motion of the particle as it moves in an oscillation

particles are displaced upwards from the average position, reach a maximum positive displacement at a point (a crest), particles below the average position fall to a maximum negative position (a trough)

What is a pulse

A single disturbance moving through a medium from one location to another location

What is meant by wave morion

When a disturbance travels through a medium, transporting energy from one location to another location without transporting matter. Each individual particle of the medium is temporarily displaced and then returns to its original equilibrium positions

amplitude

the maximum displacement if a particle from its rest (equilibrium) position

wavelength

the shortest distance between any two successive points moving in phase

frequency

the number of complete waves produced or oscillations per second (Hz)

period

the time taken to produce one complete wave

wave velocity / speed

the distance travelled by the wave per second / the number of complete waves produced per second * the length of one complete wave(wavelength)

in phase

two particles along the same point in waves exactly one wavelength apart with the same movement and direction of movement

wavefront

imaginary line joining all adjacent points that are in phase

out of phase

particles which are not moving exactly like each other

completely out of phase

half a wavelength apart, moment oppose one another

speed of wave depends on…

the properties of the medium through which it travels

how do particles behave as a wave travels

particles move up and down / oscillate from an average position

distance between particles in a longitudinal wave

not constant

distance between particles in a transverse wave is…

constant

displacement - distance graph determines

amplitude and wavelength

displacement - time graph determines

amplitude, period, frequency

what is the formula for frequency

frequency = 1 / period

what is the formula for wave speed

v = frequency * wavelength