1. Vibration
  2. Energy
  3. Frequency is the number of times any cycle happens in a given amount of time
  4. How long it takes for the pendulum to move back and forth once. How long it takes one wave to pass by.
  5. Meters, Hertz, seconds
  6. The distance from crest to crest or any one point to any next identical point. (Be able to identify wavelengths).
  7. Waves that oscillate at a 90 degree angle from the direction of wave motion. Ocean waves, rope, etc…
  8. Waves that oscillate in the same direction as the direction of wave motion. Sound, earthquakes, etc…
  9. When waves collide, and they create an interference pattern of increased or reduced amplitudes.
  10. Any substance that lets waves pass through that material.
  11. Frequency does not affect wave speed. Only the medium affects wave speed.
  12. Increasing frequency decreases wavelength, and vice versa.
  13. A standing wave appears not to have a forward direction, only oscillating up and down.
  14. A node is a place on a standing wave with no movement. An antinode is a place on a standing wave where the highest amplitude takes place.
  15. Waves show energy levels by the height of their amplitudes. Wavelength and speed are not affected by energy.
  16. Amplitude is the height from the middle of a wave to either the top or the bottom. 15 m.
  17. Its period would be 2 x less than before. Its period would be 3 x less than before.
  18. A higher frequency would mean a decreased wavelength.
  19. Mass and amplitude do not affect pendulum period. The longer a pendulum is the longer its time period is.
  20. Directly
  21. 60 seconds, because it takes 60 seconds to travel around the clock one time.
  22. 16 Hz
  23. 15000 m/s
  24. 7 seconds each
  25. 7 seconds each. 0.588 Hz.  2.65 m/s
  26. Both will take the same time, as long as they are the same length (identical)
  27. 8 seconds, because it takes 8 seconds to complete a cycle
  28. 2 meters
  29. Frequency = 4 HZ. Speed = 15 m/s. Wavelength = 3.75 m
  30. Making the graph too small; labeling axis incorrectly; Not putting a title; not starting at zero; not scaling evenly; putting a line of best fit when the data clearly curves