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5.2 Motion graphs
Interpreting motion graphsPractical 5.1PurposeTo understand how to interpret displacement-time graph and velocity-time graph.
Procedure1. Connect a motion senso
r, a datalogger interface and a computer as shown.
computermotion sensor
datalogger interface
Video: Practical 5.1
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5.2 Motion graphs
2. Study the s-t graph on the right.
Procedure
3. Try to move in front of the motion sensor in such a way that a plot of your motion will match the s-t graph. 1 3 4 5 6 7 98 10 11
02
0.30.2
0.40.5
time / s
displacement / m
0.1
1.21.1
1.00.9
0.80.7
0.6
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5.2 Motion graphs
4. Repeat the experiment with the v-t graph on the right.
Procedure
1 3 4 5 6 7 98 10-0.05
02
0.15
0.10
0.20
time / s
0.05
-0.10
-0.15
-0.20
velocity / m s-1
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5.2 Motion graphs
(b) the area under a v-t graph?The area under a v-t graph gives the displacement of the object.
Discussion
What is the physical meaning of
(a) the slope of a s-t graph?The slope of a s-t graph gives the velocity of the object.