Spring Experiment Lab Report

Lab 5.3
SPRINGS- HOOKES LAW

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Lab 5.3

SPRINGS- HOOKES LAW

Purpose:

To study the characteristics of a spring.

Hypothesis:

With an increase in weight there will be a directly relatable increase in spring length. Additionally each spring will increase to different expected lengths.

Materials:

-Light spring
-Dense spring
-Brass spring
-Masses
-Ruler
-Retort stand
-Hook
-Recording devices

Procedure:

1. Hang the spring in a place where it is free to stretch. Mark the end of the spring in neutral position, or measure the length of the spring.
2. Hang a mass on the spring and measure the stretch from the neutral position, or measure the length of the spring and subtract the relaxed length from it.
3. Repeat step 2 for four more different masses.
4. Repeat the experiment for the other springs.

Observations:

Light Spring Data
Trial
Mass (kg)
Fg = Fs (N)
ΔX (m)
1
0.2
1.96
0.01
2
0.4
3.92
0.026
3
0.5
4.9
0.03
4
1
9.8
0.068
5
2
19.6
0.135
Dense Spring Data
Trial
Mass (kg)
This shape was obtained after graphing the results, shown in graph 1. The slope calculated with the trend line on the graph, represents the spring constant. This is known because the calculations for both slope and spring constant were the same. The equation of finding the slope of a line is rise ÷ the run, which in this case was the applied force ÷ Δ x (the change in spring length). Additionally the equation for spring constant is the same; applied force ÷ Δ x. The appearance of the springs shows that with a greater spring constant (larger value slope) the spring had more of a resistance to stretching and did not expand as much in