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ch.10 vocabulary
chapter 10 voacb for Coach McCarty
Term | Definition |
---|---|
Wave | a repeating disturbance or movement that transfers energy through matter or space. |
Medium | matter the wave travels. |
Transverse waves | matter in the medium moves back and forth at right angles to the direction that the wave travels. |
Compressional waves | matter in the medium moves back and forth along the same direction that the wave travels. |
Crests | the highest points on a transverse wave. |
Troughs | the lowest points on a transverse wave. |
Rare fraction | less-dense region of a compressional wave. |
Wave length | distance between one point on a wave and the nearest point just like it. |
Frequency | the number of wavelengths that pass a fixed point each second. |
Period | amount of a time it takes one wavelength to pass a point. |
Amplitude | related to the energy carried by a wave. |
Refraction | bending of a wave caused by a change in its speed as it moves from one medium to another. |
Diffraction | occurs when an object causes a wave to change direction and bend around it. |
Interference | two or more waves overlap and combine to form a new wave. |
Standing wave | special type of wave pattern that forms when waves equal in wavelength and amplitude, but traveling in opposite directions, continuously interfere with each other. |
Resonance | process by which an object is made to vibrate by absorbing energy at its natural frequencies. |