PHY-150 M2 Kinematics Lab Report CChristo
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School
Southern New Hampshire University *
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Course
150
Subject
Aerospace Engineering
Date
Dec 6, 2023
Type
docx
Pages
10
Uploaded by SuperPencil7373
Kinematics
Christina Christo
July 23, 2023
Activity 1: Graph and interpret motion data of a moving object
Activity 1. Table 1
Time (x axis) (seconds)
Position (y axis)
(meters)
0
0
5
20
10
40
15
50
20
55
30
60
35
70
40
70
45
70
50
55
Insert your graph here for Distance vs Time of a Moving Object.
Position
Time
1
0
0.2
0.4
0.6
0.8
1
1.2
Train Motion Data
Questions for Activity 1
Question 1:
What is the average speed of the train during the time interval from 0 s to 10 s?
4 m/s
Question 2:
Using the equation:
v
=
s
2
−
s
1
t
2
−
t
1
, calculate the average speed of the train as it
moves from position x = 50m to x = 60m.
0.67 m/s
Question 3:
What does the slope of the line during each time interval represent?
Acceleration
Question 4:
From time t = 35 s until t = 45 s, the train is located at the same position.
What is
slope of the line while the train is stationary?
0
Question 5:
Calculate the average speed of the train as it moves from position x = 70m to x =
55m.
What does the sign of the average velocity during this time interval
represent?
-3m/s
The negative means the train is moving towards the left or moving backwards.
Question 6:
What is the displacement of the train from time t = 0s until t = 50s?
+55m
Question 7:
What is the total distance traveled by the train from time t = 0s until t = 50s?
85m
Question 8.
What is the slope of the line during the time interval t = 45 to t = 50?
-3
Question 9:
What does the sign of the slope in question 8 represent in terms of the
motion of the train?
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It means the train is reversing.
Question 10:
What is the average velocity of the train during the interval t= 0s to t
= 50s?
0.9m/s
Question 11:
Does the train’s average velocity during the interval t= 0s to t = 50 s
provide a complete picture of the train’s motion during this time?
No, there was a period where the train was reversing, and the average velocity is
positive.
Activity 2.
Calculate the velocity of a moving object.
Activity 2. Table 1
Time (s)
Displaceme
nt (m)*
0
0.00
0.75
0.25
1.57
0.50
2.49
0.75
3.24
1.00
3.99
1.25
4.73
1.50
5.50
1.75
6.22
2.00
*Note that 0.25 m = 25 cm
Insert a graph of Table 1 here.
Include a chart title, axes titles and
units.
1
0
0.2
0.4
0.6
0.8
1
1.2
Tumble Buggy
Time
Displacement
Activity 2. Table 2
Time (s)
Velocity
(m/s)
1
0.32
2
0.32
3
0.32
4
0.32
5
0.32
6
0.32
7
0.32
8
0.32
Insert a graph of Table 2 here.
Include a chart title, axes titles and units.
1
2
3
4
5
6
7
8
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
Column1
Time
Velocity
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Activity 3 Graphing the motion of an Object with Constant
Acceleration
Activity 3. Data Table 1.
Time (s)
Average Time (s)
Average Time
2
(s
2
)
Distance (m)
Trial 1 =0
0
0
0
Trial 2 =0
Trial 3 =0
Trial 1 =0.63
0.62
0.38
0.1
Trial 2 =0.59
Trial 3 =0.63
Trial 1 =0.75
0.81
0.66
0.2
Trial 2 =0.88
Trial 3 =0.81
Trial 1 =0.84
0.85
0.72
0.3
Trial 2 =0.83
Trial 3 =0.87
Trial 1 =1.01
1.05
1.1
0.4
Trial 2 =1.06
Trial 3 =1.09
Trial 1 =1.24
1.26
1.59
0.5
Trial 2 =1.30
Trial 3 =1.25
Trial 1 =1.31
1.34
1.79
0.6
Trial 2 =1.37
Trial 3 =1.35
Trial 1 =1.35
1.37
1.88
0.7
Trial 2 =1.41
Trial 3 =1.40
Trial 1 =1.60
1.60
2.56
0.8
Trial 2 =1.62
Trial 3 =1.58
*Note that 0.10 m = 10 cm
Insert your graphs of Distance vs Time (m) and Distance vs Time Squared
here:
Questions for Activity 3
Question 1:
What is the shape of the graph when displacement is graphed
vs. time?
Diagonal line moving up in a positive direction.
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
Distance vs. Time
Distance
Time
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
0.5
1
1.5
2
2.5
3
Distance vs. Time²
Distanced
Time²
Question 2: What is the shape of the graph when displacement is graphed
against time squared?
Diagonal line moving up in a positive direction.
Question 3:
What do the shapes of these graphs tell you about the
relationship between distance and displacement for an object traveling at a
constant acceleration?
When the travel is 1 dimensional distance and displacement will remain the
same.
Activity 4: Predict the time for a steel sphere to roll down an incline.
Steel Sphere
Acrylic Sphere
A
Length of Track (cm) (s)
(Step 1, use 80 cm)
80 cm
80 cm
B
Angle of Elevation (
) in Degrees
⁰
(Step 1)
6
6
C
Calculated Time from s=0 to s=80
(formula from step 2)
1.48
1.48
D
Measured Time from s=0 to s=80
(step 3 with stopwatch)
1.60
1.58
E
% Difference
(step 4)
8%
7%
Question for Activity 4:
What effect does the type of the sphere have on the
time of the object to travel the measured distance, explain?
There isn’t
much of a difference here. The spheres move at the same speed
aside from a slight difference in 1.6/1.58. This could have been human error.
Activity 5: Demonstrate that a sphere rolling down the incline is
moving under constant acceleration.
Questions for Activity 5:
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1.
Describe your observations of the sounds made as the sphere crosses
the equally spaced rubber bands (procedure step 4)?
(If the sounds
are too fast to discern, lower the angle of the ramp.)
The slight clicking noise that was made did speed up as the sphere
made it further down the ramp.
2.
Describe your observations of the sounds made as the sphere crosses
the unequally spaced rubber bands (procedure step 9)?
(Use same
angle as step4).
The noise was more constant as it moved down the ramp.
3.
Explain the differences you observed, if any, between the sounds with
equal spacing and sounds with unequal spacing.
Because the acceleration of the ball is constant the sounds changed
when changing the spacing of the rubber bands. The spacing from the
2nd part of the experiment compensated for the acceleration of the
ball to create a constant sound from it crossing each robber band, as to
where the sounds made increased as the ball moved down the ramp
when the rubber bands were evenly spaced.