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Go tohttps://phet.colorado.edu/sims/html/masses-and-springs/latest/masses-and-springs_en.html Select Lab Set the Spring Constant (in the Spring Constant 1 Box) to some middle value Select display natural length and Mass Equilibrium
- Go tohttps://phet.colorado.edu/sims/html/masses-and-springs/latest/masses-and-springs_en.html
- Select Lab
- Set the Spring Constant (in the Spring Constant 1 Box) to some middle value
- Select "display natural length" and "Mass Equilibrium"
- Ensure that gravity is 9.8 m/s2
- Set damping to lots.
- Ensure that simulation is on play (Pause button showing)
- Select the known mass and hang it on the spring.
- Drag the ruler from the toolbox to measure the extension of the spring.
- Set up a table with headings as in the diagram below
Mass m (g) The extension (cm) The extension (m) Weight (N)
Mass m (g) | The extension (cm) | The extension (m) | Weight (N) |
- Vary the mass at least 8 times and measure and record the corresponding extension.
- Complete the table for all your data. (15 points)
- Plot a graph of Weight vs Extension (m) (12.5 points)
- Include the trendline (2.5 points)
- Display the equation of the line on your graph (2.5 points)
- From the slope of your graph, determine the spring constant. (5 points)
Method 2
- Do not change the spring constant from method 1 above.
- Remove the ruler and drag the stop clock from the toolbox.
- Remove the displacement.
- Set the damping to none
- Pause the simulation
- Select a mass
- Play the simulation
- Set up a table with headings as below
Mass (g) | Time for 20 oscillations | Average Period T (s) | T2 (s2) | ||
t1 (s) | t2 (s) | average t (s) | |||
- Carefully start the stop clock and measure the time for 20complete oscillations.
- Repeat steps 6 and 7
- For 8 different masses complete the table of values (20 points)
- Plot a graph of T2 vs m in kg (12.5 points)
- Include the trendline (2.5 points)
- Display the equation of the trendline on the graph (2.5 points)
- Use the slope of your graph and equation (3) to determine the spring
Constant (10 points)
Write a brief discussion for the lab (10 points)
Write an appropriate conclusion for the experiment (5 Points)
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