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Waves/Oscillations
Test Description: Sho, wave propagation, amplitude, frequency, period, wavelength, wave speed, energy, springs, standing waves, harmonics
Instructions: Answer all questions to get your test result.
1) Gamma rays have higher frequency than x rays, but both travel at the same speed. Which has a larger wavelength?
A
Gamma rays
B
X Rays
2) A guitar string is tuned to have a fundamental frequency of 196 Hz. What is the speed of the wave if the length of the string is 1m?
A
298 m/s
B
392 m/s
C
344 m/s
D
435 m/s
3) Calculate the speed of a sound wave traveling in air that is 2 degrees Celsius
A
309.8 m/s
B
411.2 m/s
C
349.8 m/s
D
294.5 m/s
4) A flute is a tube with openings on both ends. What length must the flute be in order to produce the first harmonic note of 440 Hz? Assume room temperature.
A
3.8 m
B
8.3 m
C
0.38 m
D
0.83 m
5) A string has a fundamental frequency of 132 Hz. Which harmonic will produce a frequency of 792 Hz?
A
7
B
6
C
5
D
8
6) A mass on a spring has a total energy of 1000 Joules. What is the mass if the frequency is 8 Hz and the amplitude is 0.5 m?
A
314 kg
B
3.16 kg
C
3.14 kg
D
316 kg
7) Which is the correct relationship between wavelength (y), frequency (f), and wave speed (v)?
A
v = y f
B
y/f = v
C
y = v/f
D
y = f v
8) A mass on a spring is pulled 0.2 m to the right. It makes 15 oscillations in 10 seconds. What is the period of oscillation?
A
6.67 s
B
0.434 s
C
0.667 s
D
4.33 s
9) A mass on a spring is pulled 0.2 m to the right. It makes 15 oscillations in 10 seconds. What is the maximum speed of the mass?
A
8.11 m/s
B
0.811 m/s
C
11.8 m/s
D
1.88 m/s
10) Which is Thomas' favorite equation?
A
The Fundamental Theorem of Calculus
B
Bernoulli's Equation
C
The Wave Equation
D
Newton's Second Law
*select an answer for all questions
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