Question 1 1 out of 1 points Sound waves travel faster in Selected Answer: warm air. Question 2 1 out of 1 points If you increase the energy that goes into starting a vibration, you will increase the Selected Answer: amplitude. Question 3 1 out of 1 points Particles of a material that move up and down perpendicular to the direction the wave is moving are in what type of wave? Selected Answer: transverse Question 4 0 out of 1 points An echo is heard exactly 1.00 s after a sound when the air temperature is 30.0 C. How many feet away is the reflecting surface? Selected Answer: 1147 ft Question 5 1 out of 1 points If the air temperature is 90.00° F, how many seconds will elapse between seeing lightning and hearing the thunder if the lightning strikes one mile (5280.0 feet) away? Selected Answer: 4.587 s Question 6 0 out of 1 points The time for one cycle and the frequency of a vibration have a relationship of the frequency varying Selected Answer: directly with the amplitude. Question 7
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This note was uploaded on 12/10/2010 for the course PHYSICS 112 taught by Professor Dr.hiller during the Spring '10 term at Bossier Parish Community College.