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QRES Light and Sound
Terms for Light and Sound Unit
| Term | Definition |
|---|---|
| vibration | A quick back-and-forth movement of matter |
| volume | The loudness of a sound. |
| pitch | How high or low a sound is. |
| frequency | The number of vibrations per second. |
| reflection | The bouncing of light off an object. |
| refraction | The bending of light as it moves from one material to another. |
| translucent | Allowing only some light to pass through. |
| transparent | Allowing to pass through. |
| opaque | Not allowing light to pass through. |
| concave lens | A lens that is thicker at the edges than in the middle. |
| convex lens | A lens that is thicker in the middle than at the edges. |
| Amplitude | The height of a sound wave |
| Loudness/softness | Volume of a sound |
| Sound | A form of energy that travels through the air. Cannot travel through empty space. |
| Sound Waves | The way sound travels in an up and down motion. |
| Tone | A musical sound having a definite pitch |
| Wavelength | The length of the wave, the distance from crest to crest. |
| Light | A form of energy that travels in straight lines. It can travel through empty space. |
| Prism | A transparent solid body that is used to spread light into a spectrum of colors. |
| Rainbow | Water Droplets in the air act like tiny prisms. |
| Spectrum | Band or series of colors |