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Waves Test Study
| Question | Answer |
|---|---|
| Define Crest | The highest part of the wave |
| Define Trough | The lowest part of the wave |
| Define resting point | The middle the of the wave |
| Define Amplitude | The distance between the crest and the resting point. |
| What is another word for medium | Medium means material. |
| Define frequency | The number of waves in a amount of time. |
| Define Reflection | When a wave bounces off a surface that it cannot pass through and is flipped upside down. |
| Define Refraction | The bending of a wave as it enters a new medium (material), one side of the wave moves slower. |
| Define Diffraction | Bending of a wave as it passes through an opening or around an obstacle. |
| What is the type of wave that energy heads in the same direction as the movement? | Longitudinal Waves |
| What material can only longitudinal waves pass through? | Solids |
| what is the wave that makes the medium vibrate at angles to the direction of the wave? | Transverse Waves |
| What material can only Transverse waves pass through? | Trick question they CANT pass through any of the 3 forms of matter: (solid, liquid, and gas.) |
| Define Wavelength | The distance between 2 waves. |
| Define Interference | When the crest of one wave overlaps another |
| Define Sound Waves | Vibrations made up compressions and rarefactions |
| What is the speed of sound in dry air at 0°c? | 33 meters per second |
| How many centi-meters are equivalent to 1 second. | 7cm is equivalent to 1 second. |
| List all the types of frequencies on the electromagnetic spectrum in order from lowest to greatest. | Radio Waves, Microwaves, Infrared, Visible Light, UV rays, X-rays, Gamma rays. |
| What is the formula for wave speed? | wave speed = frequency X wavelength |
| What unit is used to measure frequency | Hertz (Hz) |
| What kind of wave do you calculate wave speed for | Transverse waves. |
| Example the difference between rarefactions and compressions. | Compressions is were the molecules are interacting. and rarefactions is when they are not interacting with each other. |
Created by:
campbell36
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