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Installing Logger Pro
Installing Logger Pro
Download and install Logger Pro software. The password is “exploration”.
Update Logger Pro from version 3.11 to version 3.16 using this link
Verify that Logger Pro is properly installed and updated by opening Logger Pro and clicking on “About Logger Pro” in the upper left hand corner to confirm that version 3.16 is installed.
Project A: Ball Rolling Down Ramp
Project A: Ball Rolling Down Ramp
Part One: Setup
Part One: Setup
Once Logger Pro is installed and running, you are going to download two files. These need to both be saved in the same folder on your computer (e.g. the 'Downloads' folder)
Second download (Note: this is a video file. You may need to open it, then right-click on it and select 'Save video as').
Open the first of the two files you just downloaded (It will be called CAPMVideoParadigm.cmbl). This should automatically also import the video (the second file you downloaded).
Note: If it doesn't automatically import the video, you can do it manually. Within Logger Pro click 'Insert' then 'Movie', then choose the video file you downloaded: CAPMVideoParadigm.mp4.
3. After opening the file and importing the video, you should see the following in Logger Pro:
4. Now you will analyze the ball as it rolls down the ramp. Logger Pro is very convenient in that it does the analysis for you when creating the position-time and velocity time graphs! Here's how to analyze the video:
a. Resize the movie clip (by clicking and dragging one of the corners) so that you can still see the graphs and data table in Logger Pro.
b. Play the video. Then set it back to the start of the video.
c. Enable Video Analysis by clicking on the button in the lower-right corner. This brings up a toolbar with a number of buttons (see to the left).
d. Click the Set Origin button (third from top), then click in the movie frame to set the location of the origin, which is the center of the black ball.
e. Click the Set Scale button (fourth from top), then drag across an object of known length in the movie. In this movie, the object of known length is the 1 m stick on the ramp. When you release the mouse button, enter the length of the object (1 m).
f. Use the frame advance to advance the movie clip until the object is released. Click the Add Point button (second from the top). Decide where on the object you will mark its location (center) and then click the object in the movie. Important: Be consistent in your marking. Each time you mark the object’s location, the movie advances one frame. Notice that data are being plotted on the graph.
g. Continue this process until the ball reaches the bottom of the ramp. Should you wish to edit a point, click the Select Point button (top). This allows you to move or delete a mismarked point.
h. SAVE YOUR FILE!
Below is a screenshot of how the completed analysis should look. Notice the blue dots along the video and the graph behind the video.
5. Now you will analyze the graphs that were created from Logger Pro. Select the graph window. Logger Pro defaults to display both the x and y positions of the object as a function of time. You should analyze the position-time behavior for the x-axis (red line).
6. Select “Insert” → “Graph” to insert a new velocity-time graph.
7. Change the new graph from plotting “Y Velocity” to “X Velocity” by clicking on the y-axis.
Left Graph: Initial graph when inserted
Right Graph: What new graph should look like
8. Resize both of your graphs so that both are clearly visible on the screen, like below.
9. Finally, you need to find the slope of the v-t graph. Again, Logger Pro does the heavy-lifting for us, just select the Linear Fit button .
It will find the slope of the red line, see below.
Project B: Basketball Shot
Project B: Basketball Shot
Video and Graphs
Video and Graphs
Part One: Setup
Part One: Setup
Once Logger Pro is installed and running, you are going to download two files. These need to both be saved in the same folder on your computer (e.g. the 'Downloads' folder)
Second download (Note: this is a video file. You may need to open it, then right-click on it and select 'Save video as').
Open the first of the two files you just downloaded (It will be called CAPMVideoParadigm_bball.cmbl). This should automatically also import the video (the second file you downloaded).
Note: If it doesn't automatically import the video, you can do it manually. Within Logger Pro click 'Insert' then 'Movie', then choose the video file you downloaded: Basketball Shot.mp4.
3. After opening the file and importing the video, you should see the following in Logger Pro:
4. Now you will analyze the basketball shot. Logger Pro is very convenient in that it does the analysis for you when creating the position-time and velocity time graphs! Here's how to analyze the video:
a. Resize the movie clip (by clicking and dragging one of the corners) so that you can still see the graphs and data table in Logger Pro.
b. Play the video. Then set it back to the start of the video.
c. Enable Video Analysis by clicking on the button in the lower-right corner. This brings up a toolbar with a number of buttons (see to the left).
d. Click the Set Origin button (third from top), then click in the movie frame to set the location of the origin, which is the center of the basketball.
e. Click the Set Scale button (fourth from top), then drag across an object of known length in the movie. In this movie, the object of known length is the 1 m stick on the floor. When you release the mouse button, enter the length of the object (1 m).
f. Use the frame advance to advance the movie clip until the ball is released. Click the Add Point button (second from the top). Decide where on the object you will mark its location (center) and then click the object in the movie. Important: Be consistent in your marking. Each time you mark the object’s location, the movie advances one frame. Notice that data are being plotted on the graph.
g. Continue this process until the basketball hits the ground. Should you wish to edit a point, click the Select Point button (top). This allows you to move or delete a mismarked point.
h. SAVE YOUR FILE!
Below is a screenshot of how the completed analysis should look. Notice the blue dots along the video and the graph behind the video.
5. Now you will analyze the graphs that were created from Logger Pro. Select the graph window. Logger Pro defaults to display both the x and y positions of the object as a function of time. You should analyze the position-time behavior for the x-axis (red line) and y-axis (blue line).
6. Select “Insert” → “Graph” to insert a new velocity-time graph.
7. Change the new graph from plotting “Y Velocity” to “X Velocity” by clicking on the y-axis and 'More'.
How to select both X and Y velocity
Left graph: Initial graph when inserted.
Right graph: How the new graph should look.
8. Resize both of your graphs so that both are clearly visible on the screen, like below.
9. Finally, you need to find the slope of the v-t graph. Again, Logger Pro does the heavy-lifting for us, just select the Linear Fit button .
This is an example p-t graph. Red is the x-position and blue is the y-position.
Be sure to find the slope of the red line (not the blue line!)
This is an example v-t graph. Red is the x-velocity and blue is the y-velocity.
Be sure to find the slope of both the red line and the blue line
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