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Sound & Waves Review. A Brief Glance at the Main Topics of Sound Physics 432. Types of Waves. Example: Sound. Labeling Parts of a Wave. Equation. Constructive: Adding Crests Adding Troughs Pulses on the same Side Creates antinodes in a standing wave. Destructive
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Sound & Waves Review A Brief Glance at the Main Topics of Sound Physics 432
Types of Waves Example: Sound
Constructive: Adding Crests Adding Troughs Pulses on the same Side Creates antinodes in a standing wave Destructive Subtracting a trough from a crest Pulses on the opposite side Creates Nodes in a standing wave Interference
Two Source Interference • Two sources of sound each creating sound waves. • Sound waves experience constructive and destructive interference creating loud spots and soft spots. • Calculation only deals with the placement of the loud spots. • Equation: Website Used In Class: http://id.mind.net/~zona/mstm/physics/waves/interference/twoSource/TwoSourceInterference1.html
Resonance: Strings • Increased amplitude because something is vibrating at a natural frequency.
Resonance: Open Tubes • Know the harmonics • Know the overtones • Divide the waves into quarters • Figure out how much of the wave fits into the tube • L=length of the tube
Resonance: Closed Tubes • Know the harmonics • Know the overtones • Divide the waves into quarters • Figure out how much of the wave fits into the tube • L=length of the tube