PHYS 101 Lab Report 7
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Apr 3, 2024
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PHYS 101
Lab 7 Activity
Noah Pogonitz
Daniel Afshari
James Biernacki
10/24/2023
1.
Task 1: Develop a model
Measure the equivalent spring constant of each of the three configurations shown above.
Compare the parallel and series equivalent spring constants to that of the single spring
and use this comparison to propose a physics model that will tell you the equivalent
spring constant
k
for any number of springs
N
arranged in series or parallel. Your model
should consist of two parts: one equation for the equivalent spring constant in terms of
the number of springs combined in series, and another equation for the equivalent spring
constant in terms of the number of springs combined in parallel
2.
Task 2: Test your model
Design and conduct experiments to test either your series or your parallel models using
three or more springs. Test the model as fully as you can in the time you have remaining.
Compare the equivalent spring constants predicted by your model to your measurements
and decide whether your model is rejected or supported by your experiments.
3.
Introduction:
Introduce your experiment by briefly describing the question your group is
answering or the phenomenon that you are exploring. If relevant, provide any physics
background information needed to understand the experiment.
In this experiment, we will be measuring and calculating the spring constant, k of three different
configurations: a single spring, two springs in parallel, and two springs in a series. We will then
compare the parallel and series configurations to the single spring configuration. Using the
information obtained from these configurations to come up with a model that will ultimately
allow us to calculate the spring constant, k for any number of springs, N arranged in either the
parallel or series configurations. After we have developed our model, we will test this model and
will be comparing the equivalent spring constants that are predicted by our model to the actual
results we obtain during the experiment. The models for the spring constant equivalents for the
parallel (Keff = NK) and series (1/Keff = N/K) along with their calculations are shown in the
images below. To find the Keff, the equations of Hooke’s Law (F = -kx) and Newton’s 2nd Law
(Fnet = ma) are required along with the equation T = 2π sqrt(m/k).
4.
Methods:
Describe the procedure of your experiment. It may be helpful to include
diagrams or photographs.
We first started by taking our IOLab and attaching a single spring to the end of the IOLab. We
took the IOLab with the spring attached and hung it off the edge of a table. While the IOLab was
hanging over the table, we pulled it, released it, and allowed it to oscillate. We used the
accelerometer to find the period of the IOLab while it oscillated. To find the period, use the area
of the graph between the area when the accelerometer is 0. We used the period to solve for the
spring constant by using the equation k = m(2pi/T)^2. We then took 2 springs and placed them in
series (can be seen in the image above) to each other and attached them to the IOLab’s force
probe. We repeated the steps above to find the period which then can be used to find the spring
constant. Lastly, we attached two springs parallel to each other (which can be seen in image
above) to use the same steps as above to find spring constant.
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ACTIVITY 3
Problem Solving
Gravitational Potential Energy and Elastic Potential Energy
Energy is the ability to produce changes in matter. It has two states, the kinetic energy and potential energy.
Kinetics energy has 3 forms, vibrational, rotational, and translational, While potential energy has 3 types, gravitational,
chemical, and elastic potential energy. Gravitational PE is the energy stored because of its height and elastic PE is
the energy stored in elastic materials as the result of their stretching or compressing.
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34 PM Thu Mar 4
Mid-exam physics-1.pdf
MISAN UNIVERSITY- ENGINEERING COLLEGE
PETROLEUM ENGINEERING DEPARTHENT
Class: 1
Subject: physics-1/
Date: 4-March-2021
Exam: Mid
Time: 1.5 hrs
Examiner: Dr. Ryad Tuma
Note: Answer all Questions. & Assume and data figures when it is required.
Q1) The device consists of a spring-mounted chair in which the
astronaut sits. The spring has a spring constant of 606 N/m and the
mass of the chair is 12.0 kg. The measured period is 2.41s. A) Find the
mass of the astronaut. B) What is the impact of each masses on the
whole mass?
Q2) The Dropping had been happened for 0.1 kg apple 1 m. what
speed dose it hit the ground with? Are there any energy
conservation or converted of energy during the movement
situation? And How? Show all movement in figure if it is
required.
Heid of Department. Dr. Hanoon H. Mashkoor
Extminer
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Help | System Announcements
PRINTER VERSION
1 BACK
NEXT
Chapter 7, Section 7.1, Question 034
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%3D
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100
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A neutron beam of initial kinetic energy E, is divided into two beams at point O by some
mechanism. Thereafter the beams proceed on the path OẶC and OBC without a phase change
at the corners A and B to interfere with each other at point C. Here OACB is a square of side I,
tilted at an angle 0 above the horizontal. Mass of the neutron is m, Planck's constant is h and
acceleration of free fall is g. the possible expression(s) for angle 0 at which a Maxima is
detected at C is/are
B
Horizontal
A
2hl /2mE, -h²
2m gl³
2hl/2mE,
2h
(A) sin
(B) sin-
m'gl
m°gl
6hl /2mE, -9h²
2m gl
2hl/2mE, -h²
2m gl
(C) sin
(D) tan
e Acivate
Go to Settin
6 29°C Partly cloudy
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FD
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&
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2$
4 7
7
8.
W
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A neutron beam of initial kinetic energy Eo is divided into two beams at point O by some
mechanism. Thereafter the beams proceed on the path OAC and OBC without a phase change
at the corners A and B to interfere with each other at point C. Here OACB is a square of side I,
tilted at an angle 0 above the horizontal. Mass of the neutron is m, Planck's constant is h and
acceleration of free fall is g. the possible expression(s) for angle 0 at which a Maxima is
detected at C is/are
B
Horizontal
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(A) sin
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m°gl
m°g
6hl,/2mE, -9h?
2m gl
2hl /2mE, -h²
2m°gl
(C) sin
(D) tan
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9. Students are given a pendulum. The teacher also provides students with a
pictorial model labeled A, 0, and B. Each letter signifies the position of the
pendulum.
Part A.
Which of the following explanations describes the potential and kinetic energy
at each position?
A. The potential energy is greatest at O and the kinetic energy is equal at A and B.
B. The potential energy is greatest at A, followed by B, and then O.
C. The kinetic energy is greatest at O, followed by B. and then A
D. The potential energy is equal at A and B and the kinetic energy is greatest at O.
Part B.
What factors could students adjust to explain the transformation between
potential and kinetic energy?
A. Students could push the pendulum instead of releasing it from position A to
increase the kinetic energy at position O.
B. Students could move position A higher which would increase the kinetic energy
at position O.
C. Students could increase the length of the string which would increase the…
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huma
The mass of the block depicted in the image is 1.08 kg. The spring has a spring
constant of 78.1 N/m. The coefficient of static friction between the block and the
floor is 0.594. Assume that the spring makes no contact with the floor and
therefore friction only acts on the block.
How far must the block and spring assembly be compressed to just barely
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Report your result in meters.
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Part A
The spring in the figure has a spring constant of 1200
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What distance d does the block sail through the air?
0.210.
Express your answer with the appropriate units.
(Figure 1)
T HẢ
Value
Units
Submit
Request Answer
< Return to Assignment
Provide Feedback
Figure
1 of 1
2.0 m
200 g
145°
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