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  1. SPEED OF  SOUND STUDENTS NAMES:

  2. TABLE  Placerat ligula  • Mission Goal  • Science Objectives  • Technical Objectives • Science Background   • Principles of Sound     Propagation.    •Earth's Atmosphere     •Applications      •Previous Experiments     •Expected Outcomes

  3. SIT AMET In sodales odio eget eleifend tincidunt. Integer auctor turpis ipsum, eget imperdiet dolor condimentum et. Nullam rhoncus accumsan massa vitae posuere. Vestibulum elementum nibh in mauris feugiat, eu pretium ex commodo. Duis fermentum est eget risus facilisis lacinia. Pellentesque lacinia leo vel vulputate faucibus. Phasellus tempor nunc ut odio feugiat

  4. SCIENCE Placerat ligula • Determine the general profile of temperature with altitude .                   • Determine the effects of humidity on the speed of sound.        • Determine the relationship between temperature and speed of sound.            • Measure the speed of sound with respect altitude.

  5. TECHNICAL Fuctus Augue Tincidun • Successfully reach an altitude  of 100,000 feet. • Obtain accurate and precise measurements for speed of sound.    •Measure temperature, pressure, and humidity.                                                                                                      • Withstand the atmospheric conditions such as low temperature and pressure.   • Withstand the impact upon landing.

  6. PRINCIPLES OF  SOND  PROPAGATION • Sound: Moving Pressure Wave in a Medium    -Disturbance or vibration must be made.  -Mechanical pressure wave Different wave.  -transformations depending on the medium.  • Important Factors for Sound  Waves in Gases.  -Temperature   -Gas composition

  7. EARTH'S  Placerat ligula • Troposphere  Surface to = 20 km  Temperature decreases  •Stratosphere  = 20 to 50 km  Temperature increases  •Mesosphere  •Thermosphere  •Exosphere

  8. • SONIC DETECTION AND RANGING                                         • PROJECT  MOGUL                                             (SODAR)                                                         ROSWELL UFO INCIDENT

  9. VENENATIS • Sound Navigation and Ranging (SONAR)  -Active-Emits and receives pulses of sound. -Passive- Only receives sound pulses from external sources. •Ultrasound Doppler Vibrometer Detects buried land mines.  •Huygens Probe  Measured speed of sound on Titan

  10. PREVIOUS SIT AMET Two microphones measure the time difference between sound waves. • Data were used to graph the relation between microphone separation and time difference. • Equation and time difference from software can be used to obtain speed of sound.

  11. Design Apparatus Measures the time difference between sound waves with two microphones Adjusted Data Points with Temperature

  12. EXPECTED  Placerat ligula Aliquam ac eleifend enim. Vestibulum at urna accumsan, luctus orci posuere, rhoncus erat. Aenean ipsum dui, pharetra vel neque eu, pellentesque vehicula lorem. Curabitur vehicula tellus dui, in tempor augue lobortis sit amet. Curabitur a tristique metus. Aliquam ac sem malesuada, lobortis lectus ac, venenatis lorem.

  13. THANK YOU

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