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Physics 211
The computer portion
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Computer Intensive Physics
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Spring, 1998
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An electronic version of the question is in the Exam1 Group #folder.
Save your working files to this folder.
MBL1:
Laboratory Exam Question (20 points)
Create a Word file and give it your first name and last initial, e.g. MBL1_BobF.
Answer the questions in your Word file.
Equipment:Fan cart; Low-friction track with end stops; Motion sensor.
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Don't let your fingers contact the fan blades when they are moving!
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Check that the blades are rotated to the 0[!]position (i.e. so that it moves
awayfrom the motion detector when the fan is turned on). Turn on the
fan and, starting at the far end of the track, give the cart a gentlepush
towardsthe motion sensor, such that it eventually turns around and
returns to its original position to the far end of the track from which you
pushed it.
- ( 4pts) Using ScienceWorkshoprecord the motion of the fan cart and
copya good set of motion graphs, s vs. t, v vs. t, and a vs. t, into this
document.
- ( 2 pts) Describe the velocity of the cart as a function of time.
- ( 2 pts) What is the average value of the velocity?
- ( 2 pts) What is the maximum value of the velocity? When does it
occur?
- ( 2 pts) Describe the acceleration of the cart as a function of time.
- ( 2 pts) Describe two different ways you can determine average value of
acceleration.
- ( 2 pts) What is the average value of the acceleration?
- ( 2 pts) Describe the force acting on the cart as a function of time.
- ( 2 pts) If the mass of the fan cart is 0.56 kg, what is the average net force
acting on the cart?
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