Gravitational Acceleration Lab 2 (3)
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Baruch College, CUNY *
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Course
2001
Subject
Aerospace Engineering
Date
Apr 3, 2024
Type
Pages
3
Uploaded by CorporalFinchPerson1100
Lab 2: Gravitational Acceleration Introduction
Objects are drawn downward towards the earth by the force of gravity. Gravity prompts
objects to accelerate. This experiment aims to measure the acceleration due to gravity (g) at the
Earth's surface and compare it to its present value (g = 9.81 m) to demonstrate it visually. I
measured the distance of the dots on the paper tape using a weighted alligator clip and a spark
machine.
Journal:
It can be difficult to get accurate results when measuring the distance of time using a
spark machine. To lower the inaccuracy, numerous measurements taken from different places can
give you more accurate results.
Experiment diagram:
Data:
Calculations:
Section v-
3-0=3/0.05=60
6-1=5/0.05=100
11-3=8/0.05=160
17-6=11/0.05=220
24-11=13/0.05=260
32-17=15/0.05=300
41-24=17/0.05=340
Section T-
60*0.0005=0.03
100*0.0005=0.05
160*0.0005=0.08
220*0.0005=0.11
260*0.0005=0.13
300*0.0005=0.15
340*0.0005=0.17
Slope- m = (y
2
– y
1
)/(x
2
– x
1
) = (220-160)/(0.13-0.08)=4.6
Percent error= Measured-True/True= 4.6-9.81/9.81=0.5*100= 5%
Question:
The intercept is represented by the intersection of acceleration and velocity on a graph. Constant
acceleration is shown by the slope of the line.
Errors:
The errors encountered in the lab are caused by intrinsic inaccuracies in the measuring
equipment. The spark timer's dots are hard to identify and seem to be somewhat smudged. Not
every dot shows up in a straight line. The object's air resistance may affect how quickly it
accelerates. The impact of the carbon paper on friction was not accounted for as well.
Conclusions/Discussion:
This lab demonstrates the accuracy of the gravitational rate of acceleration. From x1
being 1 to x2 being 3, the acceleration increased. Because of gravity's constant rate of
acceleration, all materials are affected by it equally, regardless of their size or weight. When the
weighted alligator clip did a free fall, each point increased since the velocity changed due to
different factors. The paper fell due to the effect of gravity at certain time intervals, and it left
position marks under the effect of gravity.
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