When waves travel through a medium, what happens to the medium?
The waves do not carry the medium with them
What happens to the motion of a duck on a pond when a wave passes under it
The duck bobs up and down but does not move along with the wave
waves that move the medium at right angles to the direction in which the waves travel
Suppose you move the free end of a rope up and down to make a wave. In that case the rope is the medium. What is the relationship between the movement of the wave and the movement of the particles of the medium?
the wave moves along the length of the rope while the medium's particles move at right angles to the direction of the wave.
waves that move the particles of the medium parallel to the direction in which the waves are traveling
two types of waves:
transverse and longitudinal. Transverse waves have crests and troughs. Longitudinal waves have compressions and rarefractions
If you were to draw a longitudinal wave, you should think of compressions like they are
the crests on a transverse wave
If you were to draw a longitudinal wave, you should think of rarefractions like they are
the troughs on a transverse wave
the maximum distance the particles of the medium carrying a wave move away from their rest position
the amplitude of a water wave
the maximum distance a water molecule moves above or below the surface of calm water
the amplitude of a TRANSVERSE wave
the distance from the rest position to a crest or trough; the maximum distance the particles move up or down from their rest position
If a longitudinal wave has crowded compressions and loose rarefractions, what is the size of its amplitude?
how can you find the wavelength of a transverse wave
Measure the distance from crest to crest or from trough to trough
when will the speed of sound waves traveling through the air change
if the temperature and pressure of the air changes
what happens to the speed of a wave if you change to a different medium?
the wave may travel at a different speed
Wave enters a new medium at an angle. One side of the wave changes speed before the other side causing the wave to bend
when a wave moves around a barrier or through an opening in a barrier it bends and spreads out
a wave that appears to stand in one place. It is really two waves interfering as they pass through each other.
why does the bending of a wave entering a new medium occur?
because the two sides of the wave are traveling at different SPEEDS
when does constructive interference occur?
When waves combine their crests or troughs to produce a wave with larger amplitude
what happens when the crests of two waves overlap?
They combine their amplitudes to produce a wave with larger amplitude. The crests become higher.
What happens when destructive interference occurs between waves with different amplitudes?
The wave whose amplitude is greater will remain minus the amplitude of a lesser wave. The amplitude of the resulting wave will be smaller.