 |  Sound 20 Flashcards |  Start |
 | What type of wave has particles moving parallel to wave direction? |  Card: 1 / 20 |
| Longitudinal wave | Card: 2 / 20 |
| True or False: In transverse waves, particles move perpendicular to wave propagation. | Card: 3 / 20 |
| True | Card: 4 / 20 |
| The distance between successive compressions is called _____. | Card: 5 / 20 |
| Wavelength (λ) | Card: 6 / 20 |
| What determines the pitch of a sound wave? | Card: 7 / 20 |
| B) Frequency | Card: 8 / 20 |
| If frequency is 50 Hz, what is the wave period? | Card: 9 / 20 |
| 0.02 seconds (T = 1/ν) | Card: 10 / 20 |
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| Why does sound travel faster in solids than gases? | Card: 11 / 20 |
| Particles in solids are closer together, allowing faster energy transfer | Card: 12 / 20 |
| What minimum distance is needed between source and obstacle for clear echo? | Card: 13 / 20 |
| 17.2 meters | Card: 14 / 20 |
| Fill in the blank: Objects exceeding sound speed travel at _____ speed. | Card: 15 / 20 |
| Supersonic | Card: 16 / 20 |
| What is the relationship between temperature and sound speed in air? | Card: 17 / 20 |
| C) Higher temperature, higher speed | Card: 18 / 20 |
| True or False: Sound can propagate through vacuum because it's electromagnetic radiation. | Card: 19 / 20 |
| False. Sound needs a medium with particles to vibrate through. | Card: 20 / 20 |
| Completed! Keep practicing to master all of them. |  Restart |
