CRAVE THE WAVE

DO NOT WRITE ON THIS DOCUMENT

1. How do you measure the wavelength in a longitudinal wave?

  1. Crest to crest
  2. Compression to compression
  3. One molecule to the next molecule
  4. Compression waves have no wavelength

2. When a wave passes through a hole in a barrier, the wave bends and spreads out in a process called?

  1. interference
  2. diffraction
  3. reflection
  4. constructive interference

3. Decibels are a measure of a sound’s

  1. loudness.
  2. wavelength.
  3. frequency.
  4. speed.

4. Polarizing filters indicate that light

  1. sometimes acts like a stream of light.
  2. sometimes acts like a wave.
  3. is made up of colors.
  4. is a form of radiation.

5. All of the following use radio waves EXCEPT

  1. microwave ovens.
  2. radar.
  3. magnetic resonance imaging (MRI).
  4. heat lamps.

6. Nodes

  1. have maximum amplitude.
  2. have maximum energy.
  3. occur only in constructive interference.
  4. are points of zero amplitude.

7. Two colors that combine to form a secondary color are called

  1. pigments.
  2. primary colors.
  3. complimentary colors.
  4. filtered colors.

8.The amplitude of a transverse wave is found by measuring the distance

  1. between two crests.
  2. between two troughs.
  3. from the rest position to a crest.
  4. from a crest to a trough.

9. If 300 waves pass a point in one minute, the frequency is

  1. 300 Hz.
  2. 18,000 Hz.
  3. 30 Hz.
  4. 5 Hz.

10. Scientists can tell how far away from them an earthquake occurred by

  1. the amplitude of surface waves.
  2. the wavelength of primary waves.
  3. The speed of secondary waves
  4. The difference between the detection of P waves and S waves.

11. When sound waves interfere, the resulting sound

  1. is always louder.
  2. is always softer.
  3. Is of a different pitch.
  4. may be louder or softer.

12. Electromagnetic waves

  1. need a medium through which to travel.
  2. consist of longitudinal waves.
  3. consists of changing electric and magnetic fields.
  4. travel at the speed of sound.

13. Rainbows are formed because

  1. rainbows are made of many kinds of waves.
  2. different colors of light have different speeds.
  3. different wavelengths of light refract by different amounts.
  4. water is refracted in visible light.

14. A material that reflects all the light that strikes it is

  1. opaque.
  2. transparent.
  3. translucent.
  4. concave.

15. Optical fibers can carry light long distances because

  1. the light in them travels nearly parallel to the surface of the fibers.
  2. the light is strong laser light.
  3. The fibers are translucent.
  4. the fibers are bundled together.

16. What type of wave is shown above

  1. transverse wave.
  2. longitudinal wave.
  3. surface wave.
  4. standing wave.

17. Speed, frequency, and wavelength are related by all of the following formulas

EXCEPT

  1. Wavelength X Frequency = Speed.
  2. Frequency = Speed

Wavelength.

  1. Frequency= Wavelength

Speed.

  1. Wavelength = Speed

Frequency.


18. Using the diagram of the speaker system, order the speakers from the one that produces the highest-pitched sound to the one that produces the lowest-pitch sound.

  1. A, B, C, D
  2. A, C, B, D
  3. D, B, C, A
  4. D, A, B, C

19. The intensity of a sound wave is

  1. measured in decibels.
  2. inversely proportional to loudness.
  3. the amount of energy the wave carries.
  4. determined by how much the sound is below the normal human range of hearing.

20. Microwaves are good for heating food because

  1. microwaves can’t pass through solid objects.
  2. microwaves heat glass dishes quickly.
  3. microwaves are easily blocked by trees or buildings.
  4. microwaves heat food very quickly.

EXTENDED RESPONSE QUESTION:
Please answer this question in complete sentences. Be sure to be very detailed with your answers. You may use a drawing to help but your answer must be in complete sentences.

21. Name and describe the three types of waves that result from earthquakes.