1. Describe qualitatively what you predict will happen if a ringing tuning fork is held over the resonance tube and the water level in the resonance tube is steadily raised from the bottom to the top of the tube. Will the pitch of the sound change? Will the wavelength 27 of the sound change? Will the loudness of the sound be constant, be steadily increasing be steadily decreasing, or pass through a series of loud and quiet spots? 2. The following diagram shows some standing wave patterns for sound in tubes with two open ends, two closed ends, or one open end and one closed end. Which of these situations best represents the resonance tube apparatus? XXX D Both ends open One end open Both ends closed 3. Draw diagrams of at least three standing wave patterns for sound in the resonance tube. Write down an equation relating the wavelength and the length of the resonance tube above the water for each diagram. What pattern do you notice in the lengths of the resonance tube for each standing wave pattern? 4. Using the equations that you wrote down in the previous step, find an equation for the difference in length between two consecutive standing wave patterns. 5. Write down an equation relating the wavelength of sound to the speed of sound. 6. Combine your equations from questions #4-5 to make an equation relating the difference in length between two consecutive standing wave patterns to the speed of sound