3/4 Relationship between wavelength and frequency

Purpose
     The purpose of this experiment was to explore the relationship between wavelength and frequency.

Procedure

• Two people held each end of the spring and stood 3m away from each other.



• Put a piece of tape on the spring.
• One person started pulsing one end of the spring until one wavelength was produced.
• Started timing when the tape was on its peak.
• Recorded the time that took the tape reached its peak 10 times.
• Repeated the same steps for two more trials.
• Conducted the same experiment when two people stood 4m and 5m away from the each other.

Data and Calculation
 

Wavelength (m)	Time 1 (s)	Time 2 (s)	Time 3 (s)	Tavg (s)	T (s)	ƒ (Hz)	λƒ
3.000±0.005	4.01	4.02	4.02	4.02 ±0.20	0.402 ±0.020	2.489 ±0.090	7.467±0.280
4.000±0.005	4.93	5.05	4.99	4.99 ±0.06	0.499 ±0.006	2.004 ±0.024	8.016±0.106
5.000±0.005	5.57	5.58	5.59	5.58 ±0.01	0.558 ±0.001	1.792 ±0.003	8.960±0.024

 

Conclusion
      The product of wavelengh and frequency were close to each other with different wavelenghs. The relationship beteween wavelenght and frequency was λ=constant/ƒ (inverse). This constant was the propagated speed of the wave.