physics stpm experiment 11

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Experiment 11 Lab Report

Physics i laboratory (phys 132), saint louis university.

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I. Experiment 11: Simple Harmonic Motion and Springs Emma Trusock Lab Partner: Arianna Brown 11/15/ II. Abstract In this experiment spring force and simple harmonic motion were tested using a sensor calculating oscillation periods with different masses. Static motion and dynamic motion were tested each using six varying masses. The data collected was displayed in graphs and the linear trend lines were found and calculated. The slopes of these lines were used to determine K. The Ks were all compared to determine if the physical law could be verified. The values fit the inequality, therefore the physical law was verified. The values showed a higher K value for the dynamic movement. This concept makes sense because a greater force was used hence the spring force and k value are directly proportional. III. Theory In this lab we will be studying simple harmonic motion of a mass on a spring. This will be tested using a force and motion sensor. Weight will be placed on the spring and the force and position will be measured. The physical laws being tested are static force, the dynamic movement, and the period of oscillation. These values can be found using a force sensor and motion sensor. In both parts a K value will be found using the slope of the line on the graph. The equation used to find k will be K=4pi^2/S where S is the slope. The S1 value will be found using the following formula: S1=(T6^2+2deltaTT6- (T1^2-2deltaTT1)) / m6-m1. The S2 value will be found using the following formula: S2=S1=(T6^2-2deltaTT6- (T1^2+2deltaTT1)) / m6-m1. These calculated K

values will all be compared using the following inequality K2>Kpart1>K1 in order to determine whether the physical law is verified. IV. Objective The purpose of this lab is to study simple harmonic motion by testing for the static force and dynamic force of a spring when weight is applied. V. Procedure In part 1 of the experiment static force was measured. The apparatus was set up with the motion sensor placed on the floor directly under the spring. The hanger was placed on the spring which measured .05 kg. Once spring was still, data was collected. The force and the position of the spring were recorded. Standard deviation was also recorded. Weights were continually added increasing by .01 kg each time until .1 kg was reached. The same values were recorded each time. It was important to make sure the spring was completely still each time before collecting data to ensure the static force was being measured. The second part of the experiment tested for dynamic motion. The same weights were used to increase each time. However, the weight was placed on the spring hanger after the data was being collected. This allowed the spring to move and bounce creating a repetitive graph with consistent periods. The periods were recorded for each mass measurement. The data collected from both parts of the experiment were displayed in a graph where S and S2 values were calculated. VI. Data Table 1: Static Force Data Hooke's Law (static force)

VIII. Qualitative Error Analysis One reason the data may not be completely accurate in the dynamic testing could be because of the varying sensor readings. Sometimes when the spring was dropped it didn’t bounce straight up and down. If the spring wasn’t bouncing straight up and down, it wasn’t hitting the

potion sensor straight on. Paying closer attention to not dropping the spring weight crookedly could fix this problem and allow for more accurate results. Another reason the data may not be completely accurate is because of the lack of trials. Only one trial was performed for each mass measurement. This is a very inaccurate way of collecting data. Almost always trials should be performed at least twice for each type of measurement and then averages should be taken. The more trials run, the more accurate the data gathered will be. IX. Quantitative Error Analysis The K value for part 1 was found by using the slope of the best fit line in the graph. The slope was 1. The equation used to find k was K=4pi^2/S where S is the slope. The K value was calculated to be 19. In part 2 the S1 and S2 values were found. The S1 value was found using the following formula: S1=(T6^2+2deltaTT6- (T1^2-2deltaTT1)) / m6-m1. The S2 value was found using the following formula: S2=S1=(T6^2-2deltaTT6- (T1^2+2deltaTT1)) / m6-m1. The S1 value was calculated to be 14. The S2 value was calculated to be 1. These two S values represent the slope of the lines of worst fit for the graph displaying dynamic motion. These values were used to solve for the K for each line. The equation K=4pi^2/S was used. The K1 value was calculated to be 2 and the K2 value was calculated to be 36. All of these values were then compared and analyzed using the following inequality: K2>Kpart1>K1. The values fit into the inequality as 36>19>2. Because this inequality makes sense the physical law can be accepted. X. Results

XI. Conclusion Because the calculated K values all fit into the K2>Kpart1>K1 inequality, the physical law can be accepted. The values were shown to be 36>19>2. This makes sense because the k constant used to determine the Force of the spring would be higher in the dynamic testing than the static testing since more force is being provided. While there were some aspects of the experiment that could have been improved to produce more accurate results, the experiment overall was very accurate. Most of the values lined up with what physical science was teaching. Understanding spring force can help one understand how simple harmonic motion works. One can conclude that a greater force is used during dynamic movement than static movement and therefore, a greater K value constant will be used.

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Course : Physics I Laboratory (PHYS 132)

University : saint louis university.

• Discover more from: Physics I Laboratory PHYS 132 Saint Louis University 55   Documents Go to course
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Physics Study Notes

Prepared by edward kong, smk methodist, sibu.

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Dedicate to STPM candidate,matriculation student and whoever taking serious in field of physic and nature science:

Chapter 1 Physical quantities and units

Revision Chapter 1

Experiment and Project Report Format

Experiment 1 Introduction to Uncertainty Analysis

Chapter 2 Kinematics

Revision Chapter 2

Experiment 2 Kinematics

Chapter 3 Dynamics

Revision Chapter 3

Experiment 3 Dynamics

Chapter 4 Work Energy And Power

Revision Chapter 4

Chapter 5 Circular Motion

Revision Chapter 5

Chapter 6 Gravitation

Revision Chapter 6

Chapter 7 Rotation of Rigid Body

Chapter 8 static.

Revision Chapter 8

Experiment 4 Statics

Chapter 9 Deformation of Solid

Revision Chapter 9

Chapter 10 Kinetic Theory of Gases

Revision Chapter 10

Chapter 11 Thermodynamic of Gases

Revision Chapter 11

Chapter 12 Thermal Conduction

Revision Chapter 12

Experiment 5 Heat Transfer

Second Term

Chapter 13 electrostatic.

Revision Chapter 13

Chapter 14 Capacitor

Revision Chapter 14

Experiment 6 Capacitors

Chapter 15 Electric Current

Revision Chapter 15

Chapter 16 Direct Current Circuit

Revision Chapter 16

Experiment 7 Wheatstone Bridge

Chapter 17 Magnetic Fields

Revision Chapter 17

Experiment 8 Earth Magnetic Fields

Chapter 18 Magnetic Induction

Revision Chapter 18

Experiment 9 induced e.m.f click here to discuss the hands on.

Chapter 19 Alternating Current

Experiment 10 Reactance of Capacitor   click here to discuss the hands on.

Chapter 20 Oscillation

Revision Chapter 20

Experiment 11 Oscillation

Chapter 21 Wave Motion

Revision Chapter 21

Chapter 22 Sound Wave

Revision Chapter 22

Experiment 12 Standing Wave

Chapter 23 Geometrical Optic

Revision Chapter 23

Experiment 13 Thin Lens

Chapter 24 Wave Optic

Revision Chapter 24

Chapter 25 Quantum Physic

Revision Chapter 25

Chapter 26 Nuclear Physic

Revision Chapter 26

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53 responses.

hi sir. how can I buy these notes and answers?

hi sir, can i have the term 1 revision answers?

sorry, i did not finished typing the answers in neat writing, but if u want the answer on specific question may be i can help

can i get the answers for chapter 3 essay question answers?

This is the suggested answers , if there is mistake u can tell me, n we discuss about it

where are the suggested answers sir?

sir, can i have answers for term 2 ?

i did not finished all the answers yet..

Hi sir, may I have the answers for the revision exercises? Thank you very much!

Sir, can i get the term 2 Revision Answer?

Can you send me the answer?

sir, saya sudah emailakn resit bayaran modul, mohon sir tengak email outlook, terima kasih

sir,may I get the answer please?it’s very helpful to me

Hi Sir.. can i get a copy of answer for the revision part

Hi sir,can i have the answers for the revision questions?

hi, yes u may, but it is in hard copy. i did not prepare the answer in softcopy neatly, so if u want it i will photostat and send it to u

can u send it to me too? i want answers for second term revision

assalamualaikum sir, can i have the answer for the revision too?

Morning sir, how can I get the answer for all the revision questions.

Can I have the discussion for experiment 4 semester 1 sir?

pls visit http://keterehskylab.blogspot.com/2019/10/experiment-4-static.html

Hi sir,can u check my answers for the revision questions for me?

Saya berminat nak beli nota…macam mana nak hubungi tuan untuk urusan pembelian nota? Pos ke Sabah. Tuan boleh hubungi saya tak? 016-9606758 (Wasap). Terima kasih.

Hello. Your contents and sources were really helpful. Thank you for your effort.

Do the books include notes, exercises and experiments?

Sir, can u post the answer on this website,i really need that… If can then will help me a lot…

how to buy the notes and answer sir?

hi sir… how to buy all your notes and answer?

klik di https://1drv.ms/w/s!Ai7Tc42E3VHpgaYdeirjLSrTGj0SjQ

Sir, I already transfer the money to your account and send you my details with attached payment receipt

Sir…have u received my email…i message t u

Helo, sir, Can i have the ans for the revision exercises (past yr Exercises) for term 1 physics?:

Oscar, u can send me ur answer, n i will check it…

cause with the answer, it will be easier for me during revision.

why the experiment file cannot open

TQ for the info… I will try to fix it as soon as possible

sir, can i know about the price for 3 term? Is it with the answer?

Sally Lim pls click here

Dear sir, ur notes is very useful, can we just buy the notes with answers from you?

which term do u prefer? I will check with Photostat shop the cost, and the postage?

Thx sir, term 1,2 and 3?

Rachel pls click here for the price

Is it possible to buy the notes from you?

Can u just send all these notes to my email , I need it as it is very useful to me . Thank You

u can download it from the link given

Sir .. have u received or not my email …if yes. Please contact to me i give in ur email

terima kasih utk nota. semoga dimurahkn rezeki tuan.

im stpm science student.. can you share the notes at my emel… i try to do..but, its cant send.. idont know why…help me please

where chp.29 ?

Great notes. Thanks =) Btw, Chapter 29 missing?

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