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The lab report must include the following sections: In addition, the report must follow the standard conventions of written English. You already did the experiment, not discussing an ongoing project. Graphs and tables should be included in-line or printed out, not pasted or taped into the report. Lab reports must be prepared on a word processor.Late lab reports will suffer a 10% per day penalty unless an extraordinary circumstance applies. Lab reports are due on the date specified on Canvas.Copy/Save an image of this graph (with the linear fit) for your write-up. Create a linear fit of the graph by highlighting the data points on the graph and selecting the Linear Fit button.į. Be sure to give an appropriate title to the graph (Right-click on the graph and select Graph Options) and the axes (see part b).Į. Under Point Symbols, select the shape you like.ĭ. In order to change the shape of the data points, double click on the second column and go to the Options tab. In the Column Definition tab, you can set the name, the short name, and the units for each column.

The column names in the data table can be renamed by double clicking on the title columns in the Data Table in the Data window. The data points should automatically be entered into Logger Pro.Ĭ. Enter the data for sinθ (X) and acceleration a (Y). Create a new data table by selecting New Data Set from the Data menu. In order to do this, unplug the motion sensor from CH 1.ī. To plot a graph of acceleration versus height, we will need to enter our data into a new table. Create a graph of acceleration versus the sinθ.Ī.

Repeat steps 2 through 5 for the five values of your height.Ĭopy the image of ONE of your velocity graphs (with linear fit) for your lab write-up! Data Analysisġ. Take the average of the three runs to get your acceleration.Ħ. Record the acceleration (the slope of the line of the velocity curve for the part of the curve where the cart is accelerating).ĥ. Determine the acceleration for the cart by using the Linear Fit tool and highlighting the appropriate region of the velocity graph. Do not let the cart collide with the end of the track!Ĥ. The motion sensor will not record accurate data for a cart closer than 40 cm (the limit of its near range). This will take slightly more finesse, but the data will be better. Record data during its entire motion back to its starting point.

Push the cart from the lower end of the track up the incline.

Release from the elevated end of the track and let it accelerate to the lower end.

You have two options for collecting velocity data from the cart: Record each value of h chosen, and then obtain a graph of velocity versus time for that value.ģ. Choose at least five values of height h, to vary  over the range 1-8 degrees.Ģ. The low end of the track should have a magnetic bumper installed on it (magnets face upward along the track).

Connect a motion sensor to the ULI and mount it on the elevated end of the track.

Measure h by measuring the difference in the two heights of your two points.Ĥ.

You can choose any two points along the track to serve as your L, but they must be the same two points for all your runs!.

Choose a value of h so that the angle of inclination stays less than about 8 degrees. Elevate one end of the track slightly using the vertical rod. Attach the ramp clamp to the lab stand and attach one end of the ramp.ģ.

Connect the ULI to the computer via the USB cable and connect the AC adapter. Plastic Box with ULI, AC Adapter, and USB Cableġ.We will take data to plot such a graph and from its slope determine the value of g. We see in Equation 2 that a graph of acceleration a as a function of sinθ should be linear with slope g. The acceleration of gravity, g, acts vertically downward, so the component of parallel to the incline – which is the acceleration of our cart – is given by Equation 2: