WAVES REVIEW
1. What are earthquake waves named? Seismic Waves
2. List the 3 types of waves. Transverse, Longitudinal, Surface
3. How do you measure the amplitude of a transverse wave? From the resting
point to the top of the crest or the bottom of the trough
4. How do you look to see if a longitudinal wave has large amplitude? How far
the crest or trough is from the resting point
5. How do you measure the frequency of a wave? PS- it has the Hz
abbreviation next to the number. Hertz, how many times a wave hits a
particular point in the medium
6. Write the formula that relates speed, frequency, and wavelength. S = w x f
7. Which of these is a reflected wave in the real world….. a tsunami or echo?
Echo
8. What happens to 2 waves in constructive interference? Waves combine to
form a larger wave
9. Name the 3 types of seismic (earthquake) waves. P waves, S waves,
10.How do geologists tell how far away from them an earthquake occurred?
Seismograph
11.In which directions do seismic waves travel from their point of origin? All
directions
12.How are mechanical waves created in a medium? When a source of energy
causes a vibration
13.List 2 mediums. Gas, solid, liquid
14.If wave particles are moving parallel to the direction in which the wave is
moving this is a longitudinal wave.
15.What type of interference is it when waves combine to make a wave with
larger amplitude? Constructive
16.When waves bend due to a change in speed this is called: refraction
17.Amplitude: the maximum distance the particles of the medium carrying
the wave move away from their rest positions.
18.Frequency: the number of complete waves that pass a given point in a
certain amount of time.
19.Wavelength: the distance between two corresponding parts of a wave;
the crest and crest of a wave or trough and trough
20.Refraction: When a wave moves from one medium to another at an angle,
it changes speed as it enters the second medium, which causes it to bend.
21.Diffraction: When a wave passes a barrier or moves through a hole in the
barrier, the wave bends and spreads out.
22.Reflection: When a wave hits a surface through which it cannot pass, it
bounces back
23.What does a wave transfer from one place to another? Energy
24.State the law of reflection. Angle of reflection is equal to the angle of
incidence.
25.What does a wave do when it moves through a hole in a barrier? Diffract
26.Draw and label these parts of a transverse wave: crest, trough, wavelength,
amplitude.
27.What’s the difference between a transverse and longitudinal wave?
Transverse wave, energy travels perpendicular to the vibration.
Longitudinal wave, energy travels parallel to the vibration
28.Calculate the speed of water waves that are .5cm apart and have a
frequency of 4 Hz. 2.0
29.The highest frequency we can hear is around 2,000Hz. What is the
wavelength associated with this frequency for high-pitched sounds that
travel at 100 m/s? 1/20 m
30.