"Beats" in Sound Refer To

question 56

Multiple Choice

"Beats" in sound refer to:

• A) interference of two waves of the same frequency
• B) combination of two waves of slightly different frequency
• C) reversal of phase of reflected wave relative to incident wave
• D) two media having slightly different sound velocities
• E) effect of relative motion of source and observer

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Definitions:

Chaparral Biome

A biome characterized by dense, spiny shrubs and a Mediterranean climate, with hot, dry summers and mild, wet winters, typically found in California and the Mediterranean region.

Primary Production

The rate at which an ecosystem’s producers capture and store energy.

Temperate Deciduous Forest

Northern Hemisphere biome in which the predominant plants are broadleaf trees that lose their leaves in fall and become dormant during cold winters.

Coniferous Forest

A biome characterized by evergreen trees with needles and cones, such as pines, spruces, and firs.