Experiment 3 wave(1)

purpose:

anaylze wavelength, frequency, and period, and find the relationship of them, and what are the extral factor affect them.

Experiment equipment:

2m meter, spring, and stop watch.

Date and Anaylze:

In the experiment, we have two people take each side of the spring, and then we measure the distance between two people, and then one people hold one side of the spring stable, other side people shake the spring up and down to make a half wave between two people, we try four times to and each times the wavelength is different, and catch the time to find the relationship between period and wavelength.

Tray	Distance between two people /m	Wavelength /m	Time for ten period /s
1	1	2	9.23
2	1.5	3	9.85
3	2	4	10.66
4	2.5	5	12.15

then we make a graph period verse the wavelength, we get close to a stright graph, so which is prove the wavelength and period have linear relationship, and the period is increase by the wavelength increase.