Experiment 9: Wave Motion
Experiment 9: Wave Motion
Experiment 9: Wave Motion
INSTRUCTIONS:
USE THIS DOCUMENT FILE TO ENCODE YOUR NAMES, DATA AND ANSWERS. FILL OUT THE DATA
AND ANSWER THE FOLLOWING QUESTIONS BELOW, USE 4 DECIMAL PLACES. SHOW YOUR
COMPLETE SOLUTIONS AND UNITS. You may paste images of your solutions on each number.
https://phet.colorado.edu/sims/html/wave-on-a-string/latest/wave-on-a-string_en.html
I. PROCEDURE:
CHOOSE OSCILLATE
AMPLITUDE
3. ADJUST the AMPLITUDE and FREQUENCY depending on the data enlisted on the table.
4. USING THE RULER ON THE SIMULATION MEASURE THE WAVELENGTH
5. SOLVE FOR PERIOD,VELOCITY
6. Fill out the Table Below:
COMPUTATIONS:
TABLE 1:
PERIOD,T
A. T=1/f =1/0.5 Hz = 2s
B. T=1/f =1/1.25 Hz = 0.8s
C. T=1/f =1/2.00 Hz = 0.5s
D. T=1/f =1/2.75 Hz = 0.3636s
E. T=1/f =1/3.00 Hz = 0.3333s
VELOCITY WAVES
A. Vw=f*λ =(0.5 Hz)(4.2 cm) = 2.1000 cm/s
B. Vw=f*λ =(1.25 Hz)(4.2 cm) = 5.2500 cm/s
C. Vw=f*λ =(2.00 Hz)(4.2 cm) = 8.4000 cm/s
D. Vw=f*λ =(2.75 Hz)(4.2 cm) = 11.5500 cm/s
E. Vw= f*λ =(3.00 Hz)(4.2 cm) = 12.6000 cm/s
TABLE 2:
PERIOD, T
A. T=1/f =1/1.50 Hz = 0.6667s
B. T=1/f =1/1.50 Hz = 0.6667s
C. T=1/f =1/1.50 Hz = 0.6667s
D. T=1/f =1/1.50 Hz = 0.6667s
E. T=1/f =1/1.50 Hz = 0.6667s
VELOCITY WAVES
A. Vw=f*λ =(1.50 Hz)(4.2 cm) = 6.3000 cm/s
B. Vw=f*λ =(1.50 Hz)(4.2 cm) = 6.3000 cm/s
C. Vw=f*λ =(1.50 Hz)(4.2 cm) = 6.3000 cm/s
D. Vw=f*λ =(1.50 Hz)(4.2 cm) = 6.3000 cm/s
E. Vw=f*λ =(1.50 Hz)(4.2 cm) = 6.3000 cm/s
Directly proportional
2. What is the Relationship of Tension and AMPLITUDE? Directly or Indirectly proportional:
Indirect proportional
3. What is the Relationship of DAMPING and Frequency? Directly or Indirectly proportional:
Directly proportional
4. What is the Relationship of DAMPING and AMPLITUDE? Directly or Indirectly proportional:
Direct proportional
5. What is the Relationship of Period and Frequency? Directly or Indirectly proportional:
Indirect Proportional
6. What is the Relationship of Amplitude and Wavelength ? Directly or Indirectly proportional:
Direct proportional
7. What is the Relationship of Frequency and Wavelength ? Directly or Indirectly proportional:
Indirect proportional
ENGR. JOE MASAOAY |PHYSE LAB WRITE UP: EXPT 9 2
EXPERIMENT 9: WAVE MOTION
PROBLEM SOLVING:
Guide Formulas:
8. Calculate the wave velocity of the ocean wave in the if the distance between wave crests is 28.0 m and the
time or period of 6.00 s.
GIVEN:
λ=28.0 m
T= 6.00 s
REQUIRED:
Vw
SOLUTION:
λ
Vw=
T
28.0 m
= 6.00 s
Vw= 4.6667 m/s
REQUIRED:
T
SOLUTION:
1
T=
f
1
= 20 Hz
T= 0.05 s
10. What is the velocity of a wave whose wavelength is 2 m and whose frequency is 5 Hz?
GIVEN:
λ= 2 m
f= 5 Hz
REQUIRED:
Vw
SOLUTION:
Vw= f*λ
= 5 Hz* 2 m
Vw= 10 m/s