Waves chapter 1

what is the angle of incidence if a reflected wave bounces off a mirror with an angle of reflection equal to 55 degrees.

55 degrees

node

A point of zero amplitude on a standing wave

seismic waves that do not travel through liquids are

S waves

Diffraction

The bending of a wave as it moves around an obstacle or passes through a narrow opening

Reflection

The bouncing back of a wave when it hits a surface through which it cannot pass.

what damage do seismic waves do

earthquakes, tsunami, floods, surface damage

A wave transfers

energy

the number of completed waves that pass a point in certain amount of time is a wave's

frequency

how can you measure the amplitude of a transverse wave

from the resting point to the crest or trough

the interaction between waves that meet is

interference

a wave that moves the medium in the same direction that the wave travels is a

mechanical wave

Suppose ripples move from one side of a lake to the other. Does the water move across the lake? Explain.

no the water does not move. the energy moves

A point of zero amplitude on a standing wave is called a

node

what order do the seismic waves come in fastest-slowest

p waves, s waves, surface waves

the bending of a wave due to a change in its speed is

refraction

Interference

the interaction between waves that meet

Explain why S waves cannot be detected everywhere on Earth after an earthquake.

they cannot travel through liquid so it can not pass through earths core so it does not pass directly through earth like p waves do

explain the difference between transverse and longitudinal waves. Use a diagram to illustrate your explanation.

transverse waves move the median at right angles to the direction in which the wave travels longitude waves move the median parallel to the direction in which the waves travel

the distance between one crest and the next crest is the wave's

wavelength

describe how t measure the speed of a wave

wavelength time wave frequency = speed