QUESTION 1 The frequency stamped on a tuning fork is 230 Hz. The actual frequenc

Question

QUESTION 1 The frequency stamped on a tuning fork is 230 Hz. The actual frequency you obtained through measurement is 232 Hz. What is the percent error of the stamped value? Percent error can be a pasitive, negative, or zero value. Please refer to the lab handout) 2 points Save Answer QUESTION 2 2 points Save Answer A wave has a period of 0.0001354158 seconds and a wavelength of 288.78 cm. What is the velocity of the wave in m/s? QUESTION 3 2 points Save Answer A sound wave has a period of 5.77 seconds. What is the frequency in unit of Hz? QUESTION 4 2 points Save Answer A bottle has 10 liters in volume, how many cubic meter is it? QUESTION 5 2 points Save Answer The frequencies of two tuning forks are 265.14 and 269.93 Hz respectively. If they are struck and held close together, what is the beat frequency? QUESTION 6 2 points Save Answer In part 3 of this lab, you measure the beat frequency between two tuning forks using two different methods. Method 1 gives you a frequency 66.6 Hz; method 2 61.6 Hz. What is the percent difference of the two values? Percent difference can be a positive or zero value. Please refer to the lab handout for formula)

Explanation / Answer

1) % error = (232-230)*100/230 = 0.87%

2) frequency = 1/0.0001354158 = 7384.66 Hz

    Wavelength = 288.78 cm = 2.8878 m

    Velocity = 7384.66*2.8878 = 21325.4 m/s

3) frequency = 1/period = 1/5.77 = 0.1733 Hz

4) 1 litre = 0.001 m^3

     10 litre = 0.01 m^3

5) Beat frequency = 269.93 – 265.14 = 4.79 Hz

7) time in 1 cycle = 8/15 sec

      Frequency = 15/8 = 1.875 Hz

8) Sound waves are Longitudinal and transverse waves both.

9) FFT stands for FAST FOURIER TRANSFORM

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