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Understanding Waves and Vibrations: Concepts and Calculations

This review covers essential concepts related to waves and vibrations, including definitions of wavelength, amplitude, crest, trough, nodes, and antinodes. It also explores the relationships between frequency, period, wavelength, and wave speed, featuring key questions about wave interference, types of waves (transverse and longitudinal), and standing waves. Participants will engage in calculations to determine wave speed, frequency, and period based on various scenarios, enhancing their understanding of physical wave phenomena.

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Understanding Waves and Vibrations: Concepts and Calculations

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Presentation Transcript

  1. CHAPTER 25 REVIEW WAVES AND VIBRATIONS

  2. Please select a Team. • Boys • Girls

  3. Waves are caused by vibrations. • True • False

  4. Wavelength? • A • B • C • D • E

  5. Amplitude? • A • B • C • D • E

  6. Crest? • B • C • D • E

  7. Trough? • B • C • D • E

  8. Node? • B • D • E • D & E • B, D & E

  9. Antinode? • B • D • E • D & E • B, D & E

  10. Team Scores

  11. If the following picture represents 1-s what is the frequency of the wave? • 1-Hz • 1.5-Hz • 2-Hz • 4-Hz

  12. If the following picture represents 1-s what is the frequency of the wave? • 1-Hz • 1.5-Hz • 2-Hz • 3-Hz

  13. The time it takes for a wave to complete ½ cycle is called a period. • True • False

  14. As the frequency of a wave increases the period will… • Increase • Decrease

  15. As the frequency of a wave increases the wavelength will… • Increase • Decrease

  16. As the frequency of a wave increases the wave speed will… • Increase • Decrease

  17. Team Scores

  18. Frequency is measured in… • Seconds • Cycles per second • Hertz • Both 2 & 3

  19. Period is measured in… • Seconds • Cycles per second • Hertz • Both 2 & 3

  20. The following waves are… • In phase • Out of phase

  21. The following waves are… • In phase • Out of phase

  22. If the two wave were added they would undergo… • Constructive interference • Destructive interference

  23. If the two wave were added they would undergo… • Constructive interference • Destructive interference

  24. Team Scores

  25. Standing waves are caused by… • Nodes • Antinodes • Interferences

  26. Waves perpendicular to their medium are… • Standing waves • Longitudinal waves • Latitudinal waves • Transverse waves

  27. Waves parallel to their medium are… • Standing waves • Longitudinal waves • Latitudinal waves • Transverse waves

  28. A wave travels 7-m in 2-s what is the speed of the wave? • 0.28-m/s • 3.5-m/s • 7-m/s • 14-m/s

  29. A Ferris Wheel completes one cycle every 70-s. What is the period? • 0.014-Hz • 0.014-s • 70-Hz • 70-s

  30. Team Scores

  31. A Ferris Wheel completes one cycle every 70-s. What is the frequency? • 0.014-Hz • 0.014-s • 70-Hz • 70-s

  32. If a wave has a frequency of 5-Hz, what is the period? • 0.2-s • 0.5-s • 1-s • 5-s

  33. A Pendulum complete 2.5 full swing every second at a speed of 4-m/s what is the wavelength? • 2.5-Hz • 1.6-m • 4-m • 10-m

  34. A wave has a period of 3-s and a wavelength of 8-m. What is the speed of the wave? • 0.8-m/s • 2.7-m/s • 8.3-m/s • 24-m/s

  35. Find the frequency of a wave that is traveling at 6.7-m/s with a wavelength of 4.3-m • 0.6-Hz • 1.6-Hz • 6.7-Hz • 28.8-Hz

  36. Team Scores

  37. Participant Scores

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