Bellwork Clear everything from your desk, except 1. Late Work 2. P/P Wait Patiently & Quietly with your head down for further directions
Waves, Sound & Light Study Guide Fill in your: Name: _________ Date: ________ Block: _________
Disturbance/Disruption 1. The direction that a T_______ wave travels is P_______ to the D_______. Transverse Perpendicular Disturbance/Disruption
Disturbance/Disruption 2. The direction that a L_______ wave travels is P_______ to the D_______. Longitudinal Parallel Disturbance/Disruption
Medium Solid Liquid Gas 3. A M_______ is a S________, L_______ or G_______ that a wave moves through. Medium Solid Liquid Gas
Mechanical Medium Electromagnetic 4. A M________ wave needs a M_______ to travel, but an E_______ wave does not. Mechanical Medium Electromagnetic
5. Parts of a wave Wavelength Crest Midpoint Amplitude Trough
6. The unit used to measure F_________________ is _____. Frequency Hertz (Hz)
Frequency Increases Pitch 7. As F____________ I____________, P____________ I____________ as well. Frequency Increases Pitch
Intensity Sound Decibels (dB) 8. The I____________ or loudness of S_______ is measured in ___________. Intensity Sound Decibels (dB)
9. The speed of sound is influenced by the M_________ that it is going through. Medium That means that it travels fastest in solids and slowest in gasses. State Speed of Sound Gas 769 mi/h Liquid 3,130mi/h Solid 5,000 mi/h
10. There are three different ways that light can be T____________: Transmitted Translucent Transparent Opaque
11. When the energy of a wave bounces off an object, this is called R__________. Reflection
12. If an object “takes in” the energy of a wave, this is called A_____________. Absorption
Scattering Reflection Absorption 13. S______ takes place if both R______ and A_____ happen at the same time. Scattering Reflection Absorption
14. R_________ happens when the S_________ of the wave C_________. Refraction Speed Changes
15. To see, light is first R___________ in the C___________. Refracted Cornea
16. Then the P_________ determines how much light enters the eye. Pupil
17. Next, the L_________ refracts the light a bit more. Lens
18. The image is then focused on the R_______ before the O_______ sends the image impulse to the brain. Retina Optic Nerve
19. The “color” of an object is the wave length that it R________ 19. The “color” of an object is the wave length that it R________. All of the other wavelengths are A________, or taken in by the object. Reflects Absorbed
Finish the following while STUDYING for the test tonight! #20 - #24
25. Return to class with this study guide finished on the day of your Test. Tuesday November 26th 2013
26. Have a parent sign in the space below or to the right.