1. Magic Letter, Magic Word
Vocabulary review

2. Magic Letter N Point of zero amplitude on a standing wave
Has no pleasing patterns

3. Magic Letter A
Maximum distance a transverse wave travels from rest position
Maximum amplitude on a standing wave

4. Magic Letter F
Number of complete waves that pass a given point in a certain amount of time

5. Magic Letter W Disturbance that transfers energy from place to place
Distance between two corresponding parts of a wave

6. Magic Letter M Material through which a wave travels
Waves that require a medium to travel
Set of notes combined a pleasing pattern

7. Magic Letter T
Waves that move medium at right angles to direction of wave’s motion
Low point on a transverse wave

8. Magic Letter L
Waves that move medium parallel to direction of wave’s motion
Perception of energy of a sound
As the energy of a sound increases, the ____________ also increases

9. Magic Letter C
When the particles of medium are close together in a longitudinal wave
High point of a transverse wave
Type of interaction where two waves meet and produce a higher amplitude

10. Magic Letter R
When particles of a medium are spread out in a longitudinal wave
When an object or wave hits a surface it can’t pass and bounces back
Bending of waves due to a change in speed
Occurs when one object causes a nearby object to vibrate at a natural frequency

11. Magic Letter U
Frequencies that are above the normal human range

12. Magic Letter E Reflected sound wave
Waves that do not require a medium to travel
Ability of a medium to bounce back after being disturbed

13. Magic Letter S How far a wave travels in a given length of time
Disturbance that travels through a medium as a longitudinal wave
Produced if the incoming wave and reflected wave have just the right frequency.

14. Magic Letter D Unit used to compare loudness of sounds
When a wave moves around a barrier or through an opening in a barrier, it bends and spreads out
Type of interaction that occurs when two waves meet and create a smaller amplitude
The reason why a siren sounds differently as it moves towards you and then as it passes you.

15. Magic Letter I The following are types of ____________
Reflection, refraction, diffraction, standing wave, interference
When two waves meet
Frequencies below the normal human range
Amount of energy a sound wave carries per second through a unit area

16. Magic Letter P The following are ___________ of waves
Amplitude, frequency, wavelength, and speed
How high or low a sounds seems

17. Magic Letter H
Patterns of standing waves

18. Interaction Practice

19. You can hear your friend talking about your surprise birthday party from around a corner.

20. While in the bath a baby makes a wave by splashing and after the wave hits the side of the tube it comes back towards her.

21. Two speakers are put just the right distance from each other so that when both speakers are on the music being played is louder than when only one speaker is on.

22. The two speakers in #3 are now moved and sometimes when you walk in front of them the music being played is softer than when only one speaker is on.

23. There is a narrow opening to a bay and when the waves from the ocean pass through it they bend into a circular shape.

24. If you shout towards a tall, far away cliff you hear an echo.

25. A spoon in a glass of water looks bent where the water meets the air.

26. You probably looked at yourself in a mirror sometime today and saw a reflection of yourself.

27. Electromagnetic Spectrum

28. Define electromagnetic spectrum

29. List the order of the electromagnetic spectrum from in increases frequency

30. What is the energy called that electromagnetic waves carry?

31. How are electromagnetic waves different than mechanical waves?

32. Light

33. What three things can happen when light strikes an object?

34. How would a tomato look under blue light?

35. What are the primary colors of light?

36. What type of reflection creates a blurry image? Why?

37. When you mix the primary colors of pigments what color results?

38. What type of mirror is this?
What type of image is formed?
What type of image would form if the object is moved between the focal point and the mirror?

39. What type of lens is this?
What type of image will it form?