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1 collection and analysis of data(M)
Physics (‫)ةيندرألا ةعماجلا‬
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LAB REPORT FOR EXPERIMENT 1
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PHYSICS LAB EXPERIMENT 1: COLLECTION AND ANALYSIS OF
DATA
1. PURPOSE :
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II. DATA:
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Table (1.1)
tin seconds
h (em)
30.0
10.0
4.0
1.0
d = 1.5 mm
73 .0
43.5
26 .7
13 .5
d= 2.0mm
41.2
23.7
15.0
7.2
d=3.0mm
18.4
10.5
6.8
3.7
d=5.0 mm
6.8
3.9
2.2
1.5
Using data in Table (1.1) fill in Table (1 .2) below:
Table (1.2)
d(mm)
h = 30.0 em
5.0
3.0
2.0
1.5
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tin seconds
h=IO .Ocm h=4.0cm
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lOMoARcPSD|23169855
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for h
= 30 em , fill in Table 1.3 below:
Table(1.3)
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for d = 2 mm
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in Table 1.4 below:
Table(l.4)
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log t
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III. ANALYSIS OF DATA :
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Graph your results. Independent variables will be the diameter of hole and
depth of water in the container. Time is the dependent variable and will depend
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on the previous two independent variables.
A. Plot the time (t) versus the depth (h) for each diameter (d) used. Do four
graphs on one sheet, using the same set of axes, connecting points in a smooth
curve for each and labeling them d I , d2 , d3 and d4 .
B. On a second sheet of graph paper, plot the time (t) versus diameter (d) for
each value of depth (h). Connect the points in a smooth curve and label the
curves hi , h2 , h 3 and h4 .
C. Plot t versus 1Jd2 for h = 30 em
D. plot log t versus log h for d = 2 mm.
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IV. CONCLUSIONS
1. From your graph (t) versus (h) ford= 1.5 mm, extrapolate the curve toward
the origin. Does it pass through it? Would you expect it to do so?
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2. What type of relationship do you see between the time and diameter? Is it
direct or inverse?
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3. From t versus (12 graph, find the empirical relationship between time (t)
and hole diameter (d) for h =30 em .
4. From the previous relation, can you predict the time needed to empty the
container if the diameter of the opening was 4 mm, !_ mm?
5. From the log t versus log h graph, find the empirical relationship between
time (t) and depth (h) for = 2 mm .
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6. Can you predict the time needed to empty the container if the depth of water
was 25 em, 80 em?
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