Waves Practice Test
 1. __________ is a measure of the energy in a wave.
 a. Amplitude b. Frequency c. Wavelength d. Wave velocity
 2. Which of the following does a transverse wave have?
 a. compressions b. amplitude c. ability to travel through space d. rarefactions
 3. __________ occurs when waves bend around a barrier.
 a. Reflection b. Diffraction c. Refraction d. Interference
 4. Waves that use matter to transfer energy are called __________ waves.
 a. mechanical b. medium c. electromagnetic d. mass
 5. The __________ is an imaginary line perpendicular to the surface of a medium where a wave strikes it.
 a. incidence b. interference c. diffraction grating d. normal
 6. __________ occurs when the crest of one wave overlaps the trough of another wave.
 a. Constructive interference b. Wave cancellation c. Amplitude shift interference d. Destructive interference
 7. In __________ waves, matter in the medium moves forward and backward in the same direction the wave travels.
 a. transverse b. ocean c. radio d. compressional
 8. Which of the following is true?
 a. You can hear sounds from a room you haven't entered because of the diffraction of sound waves. b. You can see into a room that is around a corner because of the extensive diffraction of light waves. c. You can hear sounds from a room you haven't entered because of the refraction of sound waves. d. You can see into a room that is around a corner because of the refraction of light waves.
 9. What type of waves do not require matter to carry energy?
 a. transverse b. mechanical c. electromagnetic d. compressional
 10. Why can't you see your reflection in a brick wall?
 a. No light is reflected from a brick wall. b. Reflection of light from a rough surface is regular reflection. c. Light rays are reflected in many directions from the uneven surface. d. Light rays are reflected in only one direction from the rough surface.
 11. __________ is the distance from the top of one crest of a transverse wave to the top of the next crest in that wave.
 a. Wavelength b. Frequency c. Amplitude d. Wave velocity
 12. The __________ of a wave is how many wavelengths pass a fixed point each second.
 a. frequency b. velocity c. compression speed d. amplitude
 13. In __________ waves, matter in the medium moves back and forth at right angles to the direction the wave travels.
 a. transverse b. compressional c. light d. sound
 14. The matter through which a mechanical wave travels is called a __________ .
 a. conductor b. wave relay c. substrate d. medium
 15. What is the region of a compressional wave where particles are far apart called?
 a. trough b. crest c. rest position d. rarefaction
 16. Sound waves are __________ waves.
 a. molecular b. compressional c. transverse d. radio
 17. The __________ of an electromagnetic light wave determines the color of the light.
 a. pitch b. amplitude c. frequency d. compression speed
 18. A __________ is a repeating disturbance that transfers energy through matter or open space.
 a. frequency b. medium c. conductor d. wave
 19. The process in which two waves overlap and form a new wave is called __________ .
 a. interference b. refraction c. diffraction d. wave joining
 20. Sound waves cannot travel in outer space because __________ .
 a. they are mechanical waves b. they are electromagnetic waves c. the gas molecules in outer space air are too far apart d. they cannot travel through a medium