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PHYS 008 Final Study Guide
Terms in this set (18)
A fact in science is
an agreement between trained investigators
What is the role of equations in this book?
Equations are guides to thinking and show connections between concepts.
Which of the following are scientific hypotheses?
- Chlorophyll makes grass green
- Tides are caused by the Moon
A weight suspended from a spring bobs up and down over a distance of 1 meter in two seconds. Its frequency is
0.5 Hertz (Hz)
What is the source of all waves?
The source is something that is vibrating.
Does the medium in which a wave travels move with the wave?
What travels in a wave from one location to another is
Distinguish between these different aspects of a wave: period, amplitude, wavelength, and frequency.
Period is the time from one crest to the next, amplitude is the distance from the midpoint to a crest, wavelength is the distance from one crest to the next, and frequency is the number of crests that pass per second.
In what direction are the vibrations relative to the direction of wave travel in a longitudinal wave?
Parallel to the direction of wave travel
A fishing-boat captain returns to port saying, "It's rough out there with waves that are 4 meters high." He is probably talking of waves of amplitude
2 meters (m)
The frequency of a certain wave is 10 hertz and its period is
What is the wave speed of a wave traveling an average distance of 6 meters in one second?
Interference is a property of
light waves, sound waves, and water waves
What is a node? What is an antinode?
In a standing wave, a node always has zero displacement and an antinode always has maximum displacement.
What is meant by a blue shift and a red shift for light?
An approaching source has increased light frequency - a blue shift. A receding source has a decreasing frequency - a red shift.
If you quickly run toward the orchestra at a concert, the frequency of the sound you hear will be
A sonic boom is produced by an airplane flying at a speed
greater than the speed of sound
A jet traveling at 1500 km/h passes overhead. The sonic boom produced is heard by
a listener on the ground
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