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Vocabulary. Vocabulary. Sound. Sound. Sound. 1pt. 1 pt. 1 pt. 1pt. 1 pt. 2 pt. 2 pt. 2pt. 2pt. 2 pt. 3 pt. 3 pt. 3 pt. 3 pt. 3 pt. 4 pt. 4 pt. 4pt. 4 pt. 4pt. 5pt. 5 pt. 5 pt. 5 pt. 5 pt. What is a vibration?. A quick back and forth motion. What is an amplitude?.

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  1. Vocabulary Vocabulary Sound Sound Sound 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt

  2. What is a vibration?

  3. A quick back and forth motion

  4. What is an amplitude?

  5. Measuring how loud or soft a sound is

  6. What is a pitch?

  7. How high or low a sound is

  8. What is a wave length?

  9. The distance from a point on one wave, to the same point on another wave

  10. What is a frequency?

  11. When you measure the number of waves that pass in a second

  12. What is reflection?

  13. A wave’s bouncing off a surface

  14. What is absorption?

  15. It stops sound waves from reflecting or traveling any farther

  16. What is transmission?

  17. When sound waves keep moving through materials to produce sound

  18. What is a material that allows electricity to travel through it easily?

  19. conductor

  20. What is a simple machine made up of two inclined planes back to back?

  21. wedge

  22. What unit is used to measure the loudness of common sounds?

  23. Decibel

  24. Which kind of sound is produced by sound waves with peeks that are very close together?

  25. High

  26. While hiking, Christia calls her friend’s name loudly. What might she hear when the sound waves bounce off the smooth surface of a cliff?

  27. An echo

  28. Which part of the ear acts as a funnel for sound waves?

  29. The outer ear

  30. Sound waves cause which part of the ear to vibrate first?

  31. Eardrum

  32. In which part of the ear are vibrations changed to nerve signals.

  33. Cochlea

  34. Which is softer than normal conversation? Light whisper B. Noisy office C. Normal Traffic D. Rock music concert

  35. A. Light whisper

  36. Which is louder than a rock music concert? A. Jet takeoff B.Normal Conversation C. Noisy Office D. NormalTraffic

  37. A. Jet takeoff

  38. How is current electricity different from static electricity?

  39. Static electricity is a build up of charges in one places and current electricity is charges in motion

  40. What are the 3 purposes of the skeletal system?

  41. Protect organs Supports the body Helps you move

  42. When riding in a car, you notice that the wheels make sounds against the pavement. The pitch rises as the car speeds up. State a hypothesis based on this observation.

  43. The pitch of the wheels increases with speed because the vibrations caused by the wheels get faster as the car moves faster.

  44. You want to experiment to test how well various materials muffle sounds. Which variables would you keep the same and which would you change?

  45. Same: person listening, sound being blocked, room where test is made. Change: material blocking sounds.

  46. What instrument plays at a higher pitch, a bass or a violin?

  47. A violin

  48. Olivia is standing at her front door. Her friend Gabe is five houses down the street. Olivia yells, “Gabe!” How is the sound of Olivia’s voice transmitted to Gabe?

  49. The sound is transmitted by the vibrations of air molecules between Olivia and Gabe.

  50. Gabe doesn’t hear Olivia when she calls. When she calls again, what are two things she can do to make sure that Gabe hears her?

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