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Physics 1 Problem Solutions 159

# Physics 1 Problem Solutions 159 - is tension and T is...

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Chapt. 18 Waves II: Sound Waves Multiple-Choice Problems 018 qmult 00010 1 1 1 easy memory: sound wave longitudinal 1. Sound waves in fluids are always: a) longitudinal. b) latitudinal. c) transverse. d) reverse. e) curse. 018 qmult 00012 1 1 1 easy memory: sound waves longitudinal Extra keywords: physci KB-212-5 2. Sound waves in fluids are always waves. a) longitudinal b) transverse c) mixed longitudinal-tranverse d) attitudinal e) perverse 018 qmult 00020 1 1 4 easy memory: pressure oscillates in sound Extra keywords: physci 3. One obvious quantity that oscillates in sound waves is: a) light. b) dark. c) frequency. d) pressure. e) gravity. 018 qmult 00100 1 4 1 moderate deducto-memory: sound speed formula 4. The usual speed of sound formula is:
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Unformatted text preview: is tension and T is linear mass density e) v = r ( ∂v/∂ρ ) where the derivative is taken For the adiabatic condition. 018 qmult 00450 1 3 1 easy math: sound inverse-square law 5. The intensity oF sound at 10 m From a point source is 100 W / m 2 . What is it at 100 m? a) 1 W / m 2 . b) 10 W / m 2 . c) 100 W / m 2 . d) 0 . 1 W / m 2 . e) 0 . 01 W / m 2 . 018 qmult 00470 1 3 4 easy math: decibel scale calculation 6. The sound level at The ’Boro (the student dive in MurFreesboro, Tennessee) has just jumped 43 dB. By approximately what Factor has the sound intensity increased? a) 43. b) 4.3 c) 430. d) 20000. e) 50000. 018 qmult 00700 1 4 1 easy deducto-memory: Doppler e±ect Extra keywords: physci 7. The Doppler e±ect is a/an: a) e±ect oF the line-oF-sight motions oF sources and receivers on wave Frequency. b) e±ect oF wave Frequency on the motion oF sources and receivers....
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