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chapter 17 sound and
sound and light
Question | Answer |
---|---|
frequency | THe number of vibrations per second of a sound |
pitch | how high or low a sound is |
vibration | back and forth movement of matter |
Volume | The loudness of a sound |
Sound | Travel through mediums such as solids, liquids and gases in transfers waves. These waves have molecules which vibrate to continue a sound until it reaches your eardrum |
Transparent | Letting all light pass through |
Translucent | Letting some light pass through |
Opaque | Does not let pass through |
Reflection | The bouncing of light off of surfaces |
Refraction | The bending of light as it moves from one material to another. |
Concave Lens | Thicker at the edges than at the center. Spreads light waves apart. |
Convex Lens | Thicker at the center than at the edges. Bends light waves to make them come together. |
Electromagnetic Spetrum | The spectrum that makes up the frequence range of all light. Waves from least frequency to greatest: radio waves, microwaves,infrared waves, ultraviolet waves, X-Rays |