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1.5 Assignment: Waves and sound A standing wave is formed in a string that is 98.0 cm long. Both ends of the string are fixed. Six loops are present in the standing wave. Answer the following questions about the wave. 1. Draw the standing wave. Label all nodes and antinodes, the amplitude, and one wavelength. ( 6 marks) 2. Calculate the wavelength of the wave. (Recall that the GUESS problem-solving structure should always be used for calculation problems. (4 marks) 3. If it takes a wave 0.00242 s to travel the length of the string, find the speed of the wave. ( 3 marks) 4. Find the frequency of the wave. (4 marks) A student completed a lab activity about the speed of sound in air. Using a tuning fork with a frequency of 415 Hz , they found the first and second resonant lengths of a closed air column to be 21.30 cm and 63.90 cm. 5. Find the third resonant length of the closed air column. (5 marks) 6. Calculate the temperature of the room. (5 marks) 7. If the experiment is repeated in a different room with the same tuning fork and a temperature of 21 \( { }^{\circ} \mathrm{C} \), what would the ninth resonant length be? ( 6 marks) Answer the following questions about the applications of waves. Each response should be about one paragraph. 8. Explain how an acoustic guitar produces loud music. Include the terms resonance, string, and wavelength in your response. ( 6 marks) 9. With reference to your knowledge of waves, how can planting more trees in a neighbourhood reduce the effects of noise pollution? (5 marks) Use GUESS problem-solving to complete the following questions. 10. A speaker attached to a movable cart is emitting a sound with a frequency of 698.5 Hz . If the speed of sound in the air is \( 348 \mathrm{~m} / \mathrm{s} \), how fast should the cart move (and in what direction) for an observer to hear the frequencies 659.3 Hz and 740.0 Hz ? ( 7 marks) 11. An open air column with a length of 1.00 m is placed in a room with a speed of sound of \( 332 \mathrm{~m} / \mathrm{s} \). What are the first and second resonant frequencies of the open air column? (5 marks)

          1.5 Assignment: Waves and sound A standing wave is formed in a string that is 98.0 cm long. Both ends of the string are fixed. Six loops are present in the standing wave. Answer the following questions about the wave. 1. Draw the standing wave. Label all nodes and antinodes, the amplitude, and one wavelength. ( 6 marks) 2. Calculate the wavelength of the wave. (Recall that the GUESS problem-solving structure should always be used for calculation problems. (4 marks) 3. If it takes a wave 0.00242 s to travel the length of the string, find the speed of the wave. ( 3 marks) 4. Find the frequency of the wave. (4 marks) A student completed a lab activity about the speed of sound in air. Using a tuning fork with a frequency of 415 Hz , they found the first and second resonant lengths of a closed air column to be 21.30 cm and 63.90 cm. 5. Find the third resonant length of the closed air column. (5 marks) 6. Calculate the temperature of the room. (5 marks) 7. If the experiment is repeated in a different room with the same tuning fork and a temperature of 21 \( { }^{\circ} \mathrm{C} \), what would the ninth resonant length be? ( 6 marks) Answer the following questions about the applications of waves. Each response should be about one paragraph. 8. Explain how an acoustic guitar produces loud music. Include the terms resonance, string, and wavelength in your response. ( 6 marks) 9. With reference to your knowledge of waves, how can planting more trees in a neighbourhood reduce the effects of noise pollution? (5 marks) Use GUESS problem-solving to complete the following questions. 10. A speaker attached to a movable cart is emitting a sound with a frequency of 698.5 Hz . If the speed of sound in the air is \( 348 \mathrm{~m} / \mathrm{s} \), how fast should the cart move (and in what direction) for an observer to hear the frequencies 659.3 Hz and 740.0 Hz ? ( 7 marks) 11. An open air column with a length of 1.00 m is placed in a room with a speed of sound of \( 332 \mathrm{~m} / \mathrm{s} \). What are the first and second resonant frequencies of the open air column? (5 marks)

15 assignment waves and sound a standing wave is formed in a string that is 980 cm long both ends of the string are fixed six loops are present in the standing wave answer the following ques 93152

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