| A | B |
|---|
| Sound travels through a medium as.. | as a longitudinal wave |
| Sound CANNOT travel through | Outer space |
| Loudness is measured in.. | decibels |
| Elasticity | The ability of a material to bounce back |
| Speed of sound depends on... | kind of medium it travels through |
| As sound source moves closer... | the pitch INCREASES |
| Echolocation | What bats use to locate food & navigate |
| Sonar | System of detecting reflected sound |
| Because of Diffraction | you can hear sounds around corners |
| Sound travels more slowly... | In dense materials |
| Translucent | Material that reflects or absorbs light, can't see through it |
| Frosted glass & wax paper | Are translucent |
| Concave mirror | Curves inward |
| Refraction | Bending of light waves as they enter a new medium |
| When light strikes a black object | Light is absorbed..No light is reflected |
| Clear glass, water | They are transparent |
| Convex mirror | Curves outward |
