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Which letter corresponds to amplitude of the wave in the diagram below?

Which letter corresponds to amplitude of the wave in the diagram below?. A B C D E. 0 of 29. Which letter corresponds to the wavelength of the wave in the diagram below?. A B C D E. 0 of 29. Which is always true of mechanical waves?. They move through a material substance

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Which letter corresponds to amplitude of the wave in the diagram below?

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  1. Which letter corresponds to amplitude of the wave in the diagram below? • A • B • C • D • E 0 of 29

  2. Which letter corresponds to the wavelength of the wave in the diagram below? • A • B • C • D • E 0 of 29

  3. Which is always true of mechanical waves? • They move through a material substance • The material oscillates back and forth parallel to the direction the wave is moving. • The material oscillates back and forth perpendicular to the direction the wave is moving. • The frequency of the disturbance causing the wave determines how quickly the wave propagates. • Their reflections are inverted 0 of 29

  4. A girl playing on a swing set goes back and forth 45 times in 1.00 minute. Which of the following correctly describe the period and frequency of her motion? • 45.0 s 1.00 Hz • 0.750 s 1.33 Hz • 1.33 s 0.750 Hz • 1.00 s 45.0 Hz • 60.0 s 45.0 Hz 0 of 29

  5. An oboe produces a sound wave with a frequency of 690 Hz that travels at a speed of 345 m/s. What is the wavelength? • 4.0 meters • 2.0 meters • 1.0 meters • 0.50 meters • 0.25 meters 0 of 29

  6. Light, microwaves, and radio waves are examples of • Mechanical waves • Longitudinal waves • Electromagnetic waves • Seismic waves • Pressure waves 0 of 29

  7. 0 of 16 Units of Hertz (Hz) describe the: • Number of seconds per cycle • Number of cycles per second • Number of grams per mL • Number of meters from crest to crest 10

  8. 0 of 16 Which formula correctly describes the relationship between wave properties? • l=f/v • T=v/f • v=lf • v/T=l 10

  9. 0 of 16 The rate at which waves transmit energy is proportional to their: • Wavelength • Amplitude • Amplitude squared • Period squared 10

  10. 0 of 16 A wave makes 30 oscillations in 6.0 seconds. Its period is ___ and its frequency is ____. • 5 s, 5 Hz • 0.2 s, 5 Hz • 5 s, 180 Hz • 24 s, 36 Hz • 5 s, 0.2 Hz 10

  11. 0 of 16 Which of the following is NOT a way that waves change direction? • Reflection • Interference • Diffraction • Refraction 10

  12. 0 of 16 The bending of a ray as it crosses an interface and enters a new medium is: • Refraction • Doppler effect • Diffraction • Thin film interference 10

  13. 0 of 16 Sound waves are classified as: • Longitudinal mechanical waves • Transverse electromagnetic waves 10

  14. 0 of 16 For a closed tube, only the ____ harmonics are present. • Even • Odd • Prime • All the harmonics are present 10

  15. 0 of 16 _____ is when you drive a system at its natural frequency. • Interference • Beats • Diffraction • Resonance 10

  16. 0 of 16 The pitch of a sound is most closely associated with the ____ of the wave. • Speed • Amplitude • Frequency • Medium 10

  17. 0 of 16 The speed at which a wave propagates is determined primarily by: • The source • The properties of the medium. • The wavelength • The amplitude 10

  18. 0 of 16 The bending of waves around a barrier is an example of: • Diffraction • Refraction • Interference • Resonance 10

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