02.08 Acceleration LAB PDF

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The physics lab is done with a non-consistent virtual lab....

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02.08 ACCELERATION LAB

Virtual Lab Simulation Purpose: To use a physics applet to examine different accelerations Materials: Calculator, The moving man stimulation. Procedure: 1. Open the virtual lab by selecting the link: The Moving Man.

2. Ensure that you are on the Charts tab so that you can see the position-time, velocity-time, and acceleration-time graphs. Also, remove the walls by selecting the x so that the man is free to walk indefinitely. You can play around with the simulation to get a feel for how it works but select “Reset All” when you are ready to collect data. 3. Input different initial positions, initial velocities, and accelerations values (do not put the units in the boxes). Make sure that you select various accelerations values: positive, negative, zero, small, or large. Record your values in a table such as Table 1. 4. Run the simulation each time for at least four trials. Ensure you capture the various graphs by taking screenshots or pictures of each trial. You will need them for your results. You will only need to submit your table of values and the results, not the screenshots, in your assessment. Table 1 Trial

Initial Position (m)

Initial Velocity (m/s)

Acceleration (m/s/s)

1 (large +ve acceleration)

0

0

20

2 (negative acceleration)

0

8

-4

3 (small +ve acceleration)

0

3

6

4 (0 acceleration)

0

3

0

Results: 1. Compare the position-time, velocity-time, and acceleration-time graphs of your zeroacceleration trial to a positive acceleration trial. Trial 4 which is zero acceleration and trial 1 and 3 which is positive acceleration is quite different. Since trial 4 has a linear slope for a position-time graph and has a constant slope for the velocity-time graph but for the acceleration-time graph it has zero slope. On the contrary, the positive acceleration trial 1 Evangelin Rose Grade 11

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02.08 ACCELERATION LAB

and 3 has graphs of positive half-parabola for position-time graph and a positive linear slope for the velocity-time graph while the acceleration-time graph stayed constant with a zero slope. 2. Do another comparison for a positive acceleration trial and a negative acceleration trial. The positive acceleration trial 1 and 3 has graphs of positive half-parabola for position-time graph and a positive linear slope for the velocity-time graph while the acceleration-time graph stayed constant with a zero slope. On the other hand, Trial 2 which has the negative acceleration has a negative halfparabola for position-time graph and it would have a negative linear slope for the velocity-time graph and the acceleration-time is constant with a zero slope. 3. Do a third comparison for a small acceleration trial and large acceleration trial. Both trials 1 and 3 have graph positive half-parabola slope for position-time graph and a positive linear slope for the velocity-time graph and a constant acceleration which is a zero slope. However, in trial 1 would be much steeper in both the position-time graph and the velocity-time graph than the same graphs in trial 3 because its graphs have gradually less steep slopes. In your comparisons, please use terms such as linear, non-linear, positive slope, zero slope, negative slope, and parabolic. Remember to use full sentences and limit each example to three sentences. Trial 1: (large +ve acceleration)

Evangelin Rose Grade 11

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02.08 ACCELERATION LAB

Trial 2: (negative acceleration)

Trial 3: (small +ve acceleration)

Evangelin Rose Grade 11

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02.08 ACCELERATION LAB

Trial 4: (0 acceleration)

Evangelin Rose Grade 11...