Experiment 2:_Investitaging Whether the Mechanical Energy of the Trolley is Conserved
or not
Class_______Name___________Due 9.20 8:30 am
Purpures: Design an experiment to Investigate Whether the Mechanical energy of the Cart
is conserved or not. You have available to PASCO instruments, like track, motion sensor,
measuring tape.
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Describe the method you will use to gather data, including a labeled diagram of how the
equipment will be used and set up.
Outline what equation(s) you will use the process the data.
Include a labeled ray diagram.
I. Principle or equation related to this investigation
II. Materials and Equipment and how it will be used
Quantity to be measured
Symbol for the quantity
Equipment for the
measurement
III. Labeled diagram of how the equipment will be set up
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Grouping:
Group
Name
Role or responsibility
Engagement
Chinese speaking
____
1
2
3
Measuring the relevant data
1
4
IV. Design an experimental overall procedure that could be used to determine g graphically (including
Data table)
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step 1:
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2.
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3.
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4.
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5.
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Trial
Initial
Mass of
Height of
the
the Trolley
Trolley/m
Release
height/m
Height Drop
MgΔH
(H)/m
Speed of
the trolley
at the
bottom
Speed
squared
1
2
3
4
5
6
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V. Data processing （including show the equations that will be used for calculations, using the
symbols provided in the previous part and plot the data points for the quantities you have
identified in the former part, and sketch the best straight-line fit to the points.


use ,
Graph(s) you will produce to analyze your data as shown below
2
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VI. Conclusion
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VII. Evaluation and improvement (Describe improvements that could be made to this
experiment to reduce experimental uncertainty. You may suggest the use of other apparatus or
different procedures.

Evaluation:
Improvement:
Bibliography
3