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P hy s i c s L a b 7 ( O n l i n e S i m u l a t i o n )
SIMPLE HARMONIC MOTION
Mechanics
Unit 7
TA name: Due Date: 10/29/23
Student Name: Kaiya Ajiboye
Student ID: 1001782385
Simulation Activity #8: Masses and Springs Simulation created by the Physics Education Technology Project (PhET) c/o The University of Colorado at Boulder http://phet.colorado.edu/
Investigating Springs: Harmonic Motion and Energy Exchanges
Objective:
This activity is intended to enhance your physics education. We offer it as a virtual lab online.
We think it will help you make connections between predictions and conclusions, concepts and
actions, equations and practical activities. We also think that if you give this activity a chance, it
will be fun! This is an opportunity to learn a great deal. Answer all questions as you follow the
procedure in running the simulation
.
You need to familiarize yourself with this spring mass system simulation. The spring’s stiffness
can be adjusted using “spring constant” slide and the mass can be adjusted using “mass” slide.
There are also sets of unknown masses that can easily be hanging on springs. The oscillation of
P hy s i c s L a b 7 ( O n l i n e S i m u l a t i o n )
a mass can be real time or slowed down. The damping effect can be controlled by “damping”
slide bar. You can also transport the virtual lab to a different planet. You have also an option to
observe how the potential and kinetic energies exchange during oscillation and thermal energy
due to friction in the system. Timer is also available if check the “stopwatch” box in the control
panel. Use the “ruler” to make vertical position measurements.
Introduction:
When a load is applied to the free end of a spring suspended from a fixed support, the spring stretches
until the tension in the spring balances the weight of the load. If the stretch is within the elastic limit of
the spring, the load on the spring is directly proportional to the stretch of the spring and the spring obeys
Hooke’s law. Hooke’s law: F = -k
x, where k is the spring constant and
x is stretched (or compressed) Under this conditions, the loaded spring, if set into vibration, will undergo harmonic motion with a period
given by the equation,
T
=
2
π
√
m
k
Where T = period of motion, m=the effective mass of the vibrating system, and k=the spring constant
Procedure: Finding Spring Constant: Open Masses and Springs
http://phet.colorado.edu/simulations/sims.php?sim=Masses_and_Springs
When you start the lab, make sure you click on the Lab button.
1.
Apply the settings as shown above. a.
Determine the starting position by placing the ruler next to a spring. x
0sp1
= __0___m. -2
b.
Hang a 100g mass from the spring and read the position of the spring. x
1sp1
= __0.15___m. -2
c.
Find the displacement and calculate the constant of the spring.
x = 0.15_m, Force = 0.98 N
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5. Two cables are tied to the 2.0 kg ball shown below. The ball revolves in a horizontal
circle at constant speed. (Hint: You will need to use some geometry and properties of
triangles and their angles!)
60°
1.0 m
60°
© 2013 Pearson Education, Inc.
(a) For what speed is the tension the same in both cables?
(b) What is the tension?
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Wind Farms
Consider the arrangement of three wind turbines in the following schematic in which wind
turbine C is in the wakes of turbines A and B.
Given the following:
- Uo = 12 m/s
A
-XẠC = 500 m
-XBC = 200 m
- z = 60 m
- Zo = 0.3 m
U.
-r, = 20 m
B
- CT = 0.88
Compute the total velocity deficit, udef(C) and the velocity at wind turbine C, namely Vc.
Activate Windows
Go to Settings to activate Windows.
Wind Farms (Example Answer)
5:43 PM
A 4)) ENG
5/3/2022
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PHYS220 Spring/20-21 Practice Sheet-1 Keys
1) A0.1 kg object oscillates as a s
At a position X,, the object has a kinetic energy of 0.7 J and a potential energy 0.3 J. The amplitude of
oscíllation, A, is:
(a) 0.12 m
(b) 0.22 m
aple harmonic motion along the x -axis with a frequency f 3.185 Hz.
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2.Using Newton's second law determine the acceleration of your lander due
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Given:
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МЕСH 274-Mech.
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Dashboard / My courses / MECH 274-1-20202
| Final Exam on June 6, 2021 / Final Exam
Question 9
Not yet answered
Marked out of 2.00
- Remove flag
Which of the following is represented by the
area under displacement-time diagram?
Select one:
O a. Force
O b. Velocity
O c. Acceleration
O d. Gravity
Previous page
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Material: 6061 Alloy
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R
O a. 1280.91 grams
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O d. 1398.47 grams
3
8x 45
80
960-
R20
Origin
What is the overall mass of the part?
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Ć
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Pictures
icture
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F4
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Format
1) A 3-kg sphere moves in the x-y plane and has the velocity
shown at this instant. What is the
21
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b. Momentum, or linear momentum, of the sphere
c. Angular momentum about point O of the sphere
S.W.
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x = ∫_0^t▒(e^t- 1)dt/(11 )= x_0 +(e^t- t - 1)/(11 )
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Select the correct basic motion diagram of the jet ski, using images from the video, from 10 s before reaching top speed until 10 s afterward.
▸ View Available Hint(s)
Os
=70 mph
Os
4=10s
= 70 mph
=10s
x (m)
420 s
(= 20s
x (m)
= 70 mph
OS
4,= 10s
=20s
x (m)
Submit
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