PHYS-1 Lab 3
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School
Tarrant County College, Fort Worth *
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Course
1415
Subject
Aerospace Engineering
Date
Dec 6, 2023
Type
Pages
4
Uploaded by 77mdestiny
Lab 3: Free Fall: The Measurement of the Acceleration of Gravity
Name ___
Destiny__________________________
Date___9-7-
23________
Lab Partner(s) ____
Yoselin, Caden_________________________________
Laboratory Report
A.
Acceleration of Gravity from graph, using best data of all runs.
Trial
Experimental g from your graph (m/s
2
)
Standard Deviation
σ
N-1
1
9.84
0.26
2
9.64
0.010
3
9.72
0.055
4
9.89
0.079
5
9.36
0.064
** Insert
two
screenshots of
your best linear fitted graphs
, showing data points and slope, one for
part
A
and another for part
B
**
Average experimental value g
9.69
______ m/s
2
Percent error from the accepted local value of g = 9.80 m/s
2
is
1.12
Show calculations
(9.8-9.69)/9.8 x 100= 1.122244898
B.
Acceleration of Gravity from graph: heavier object
–
instructor’s
demonstration.
g 9.76
m/s
2
+/-
9.8
m/s
2
Percent error from the accepted local value of g = 9.80 m/s
2
is
-0.4
Show calculations
Lab 3: Free Fall: The Measurement of the Acceleration of Gravity
(9.76-9.8)/ 9.76x100
Questions:
1.
What is the effect of mass on the acceleration of gravity, g?
It does not affect the acceleration.
2.
Consider an object in free fall near the earth’s surface. Does the object’s
acceleration
increase, decrease, or stay the same?
It will stay the same.
3.
Can an object be in free fall if it is moving upward? Explain.
Yes, because when gravity is the sole force acting on an object, it is said to be in free
fall; this has nothing to do with the object's instantaneous velocity at any given moment.
Lab 3: Free Fall: The Measurement of the Acceleration of Gravity
4.
Suppose that a student is travelling in a hot air balloon that is accelerating upward at 4.0
m/s
2
. If
she drops an apple over the side, what is the apple’s acceleration once it is
released?
The apples acceleration is 39.2
5.
Not every object that moves downward is in freefall. What is the requirement for an
object to be in free fall? Is an elevator in freefall if it is functioning properly? Explain.
The requirement for an object to be in free fall, is to fall under the impact of gravity. An elevator that is functioning
properly is not in free fall because the cables are holding it up.
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Lab 3: Free Fall: The Measurement of the Acceleration of Gravity
CONCLUSION
In this lab we measured the acceleration of gravity using a ruler like
object. The experimental G that we got was all 9. Something. Our average
experimental g came out to be 9.69.
In this lab we learned a lot more about
freefall and how to show it. We also used a weighed item, at the end of the
ruler like object to get a different result.