Name: ____________________________ Period: _____ Date: ___________________________ Wave Practice Test 1. – 3. Define and draw a picture of a transverse wave (how do the particles move?). Give an example of a transverse wave. 4. – 6. Define and draw a picture of a longitudinal wave (how do the particles move?). Give an example of a longitudinal wave. Define the following terms, then label them on your diagrams above: 7. crest 8. trough 9. wavelength 10. amplitude 11. period 12. frequency 13. compression 14. rarefaction 15. Waves bounce back when they meet a surface. This phenomenon is called… 16. Waves “bend” as they go around an object. This phenomenon is called… 17. Waves “bend” as they go from 1 medium to another. This phenomenon is called… 18. – 19. When waves bounce back on each other, they sometimes add together and amplitude increases. This phenomenon is called…(draw it) 20. - 21.When waves bounce back on each other, they sometimes subtract from each together and amplitude decreases. This phenomenon is called… (draw it) 22. – 23. Waves that occur from bouncing back and appear to be flip-flopping are called… (draw one with a frequency of 2 Hz) 24. Using the grid below, draw a wave that has an amplitude of 5 blocks and a wavelength of 12. Draw your wave from the left side of the grid all the way to the right. The time is takes for the wave to get from the left to the right will be 1 second. When you are done, determine the quantities below. 25. frequency: ____________ 26. wavelength: ____________ 27. amplitude: ____________ 28. period: ____________ Show all work for the math problems below. =f = /T f= 1/T T= 1/f 29. __________________________ How fast is a sound wave with a frequency of 256 Hz and a wavelength of 1.3 m? 30. __________________________ If a sound wave travels through air at a speed of 345 m/s, what would be the frequency of a 0.80 m long wave? 31. __________________________ If a sound wave travels through air at 331.5 m/s, what would be the wavelength of a 1024 Hz sound? ANSWER KEY__ Period: _____ Date: ___________________________ Wave Practice Test Name: __ 1. – 3. Define and draw a picture of a transverse wave (how do the particles move?). Give an example of a transverse wave. Particles move perpendicular to the wave (energy). Light is an example. P waves (earthquakes) re another. 4. – 6. Define and draw a picture of a longitudinal wave (how do the particles move?). Give an example of a longitudinal wave. Particles move parallel to the wave (energy). Sound is an example. S waves (earthquakes) are another. Define the following terms, then label them on your diagrams above: 7. crest: highest point on a wave 8. trough: lowest point on a wave “size” of a wave: crest/crest or trough/trough or compression/compression or rarefaction/rarefaction or one point to same point on next wave 10. amplitude: “height” of a wave…maximum 9. wavelength: 11. period: displacement time for one wave (sec.) 12. frequency: number of waves per second (Hz) 13. compression: 14. rarefaction: where waves “bunched” together where waves are spread out 15. Waves bounce back when they meet a surface. This phenomenon is called… Reflection (how mirrors work) 16. Waves “bend” as they go around an object. This phenomenon is called… Diffraction (why we can hear sound from another room) 17. Waves “bend” as they go from 1 medium to another. This phenomenon is called… Refraction (how lenses work) 18. – 19. When waves bounce back on each other, they sometimes add together and amplitude increases. This phenomenon is called…(draw it) constructive interference 20. - 21.When waves bounce back on each other, they sometimes subtract from each together and amplitude decreases. This phenomenon is called… (draw it) destructive interference 22. – 23. Waves that occur from bouncing back and appear to be flip-flopping are called… (draw one with a frequency of 2 Hz) standing waves 24. Using the grid below, draw a wave that has an amplitude of 5 blocks and a wavelength of 12. Draw your wave from the left side of the grid all the way to the right. The time is takes for the wave to get from the left to the right will be 1 second. When you are done, determine the quantities below. 2 5/12 2.417 Hz_ 26. wavelength: _12 blocks 47 mm_ 27. amplitude: _5 blocks 20 mm__ 28. period: _T = 1/f 1/2.417 .414 sec__ Show all work for the math problems below. =f = /T f= 1/T 25. frequency: _ T= 1/f 330 m/s__ How fast is a sound wave with a frequency of 256 Hz 29. ___ and a wavelength of 1.3 m? = f = (256 Hz)(1.3m) 430 Hz_____ If a sound wave travels through air at a speed of 30. _ 345 m/s, what would be the frequency of a 0.80 m long wave? = f 345 m/s = (f)(.8m) .32 m______ If a sound wave travels through air at 331.5 m/s, 31. ___ what would be the wavelength of a 1024 Hz sound? = f 331.5 m/s = (1024 Hz)()