Lab 2: Force and Energy, Velocity and Acceleration, and Power

62 Replies

In this lab we experienced Newton’s second law F = ma, the law of conservation of energy, velocity and acceleration, and power by using the Lego Mindstorm motor to lift up weights with a pulley.

http://sites.suffolk.edu/annavalutkevich/files/2012/02/photo-1-300x300.jpg

First, exploring Newton’s 2nd law. Newton’s 2nd law states that acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the force needed (to accelerate the object). From the formula F = MA, we can calculate any unknown value as long as we have 2 know values. Below is a simple way to explain the law.

 

 

With that being explained, when we kept the power level (force) fixed and changed the mass by 40 g at a time for 3 turns in the experiment, we found out that the acceleration changes inversely proportional to the change of mass. In other words, the smaller the mass the faster the acceleration. A great clarification can be done by using the Excel with the values and graphing the results as shown below.

acc1

Units; Acceleration rpm/s (rotation per minute/ second). Mass kg (kilograms)

For the second part of exploring this law, we kept the mass fixed and changed the power level resulting in directly proportional changing in acceleration. Therefore, a= f/m has been verified by this following graph.

acc2

Second, exploring the Law of Conservation of energy. Energy in a system may take on various forms kinetic, potential, heat, or light for instance. The law states that energy can neither be created nor destroyed, therefor, the sum of all forms of energy in the system is a constant. For example, a pendulum is commonly used to demonstrate the law.

When the pendulum is pulled leftward, potential energy will be converted to kinetic energy as the to make the pendulum move rightward. The pendulum is going to keep swinging until all of the kinetic energy is converted back to potential energy. Therefore, potential energy PE= mgh where m is the mass, g is the acceleration of gravity, and h is the height.

The experiment we did was to determine the battery drainage as a function of mass. As we keep the power level fixed and change the mass, we can notice that the greater the mass the greater battery drainage as shown in the graph below. This is, because the battery energy gets converted to the potential energy of the mass.

batter

Third, for the final experiment, we calculated the average of the power used by the motor in all the trials with the fixed mass and variable power level. The formula used for this calculation is power used= potential energy/time= mgh/time

Power vs power used

In conclusion, in order to give the reader a bigger image of the experiments, below is the excel sheet with all the values.

Speed(RPM) battery discharge Mass(kg) power(%) time(s) acceleration(RPM/s) g (m/s^2) height(m) mgh(j) Power used(W)
0 86.052632 0 111 0 0.2 0 75 0 1.9 0 45.290859 9.8 0.33 0.6468 0.340421053
0 89.346161 0 97 0 0.16 0 75 0 1.871 0 47.753159 9.8 0.33 0.51744 0.27655799
0 92.006901 0 56 0 0.12 0 75 0 1.739 0 52.907936 9.8 0.33 0.38808 0.223162737
0 96.17613 0 56 0 0.08 0 75 0 1.726 0 55.721976 9.8 0.33 0.25872 0.149895713
0 111.265005 0 84 0 0.2 0 95 0 1.444 0 77.053327 9.8 0.33 0.6468 0.447922438
0 57.112996 0 55 0 0.2 0 55 0 2.711 0 21.067133 9.8 0.33 0.6468 0.238583549
0 84.980923 0 83 0 0.2 0 75 0 1.922 0 44.21484 9.8

This lab was very beneficial in a way that allowed us to analyse values and learn important laws of physics in general practically, which I personally always prefer. 

 

References

http://easycalculation.com/physics/classical-physics/learn-potential.php

http://www.glogster.com/scuther/newton-s-second-law/g-6l1p2i7ggpcp8uq7ig08ga0

http://chemistry.tutorvista.com/inorganic-chemistry/law-of-conservation-of-mass.html

 

 

62 thoughts on “Lab 2: Force and Energy, Velocity and Acceleration, and Power”

    2. CouponPlay

      It was a good chance to read this post and can grab useful knowledge. Thanks for sharing this post.
      Do not hesitate to access our site to view my blog as well as hottest promo codes for online shopping.

      Reply ↓
  2. SIP DIDs

    Actually pretty good article … lighting is so much a part of your talent, so it’s most interesting to read about how it was created
    qDaveDavea

    Reply ↓
  3. Order Thermo Factor X

    I’d like to thank you for the efforts you’ve put in writing this website.
    I am hoping to check out the same high-grade content from you in the future as well.
    In fact, your creative writing abilities has encouraged me to get my
    own, personal blog now 😉

    Feel free to visit my web page: Order Thermo Factor X

    Reply ↓
  4. Help In Homework

    It was so good to see you acknowledging this topic, it really feels great. Thanks for sharing such valuable information which is very hard to find normally.
    Feel free visit this site paper writing services for more help regarding Assignments. Homework Help.

    Reply ↓
  5. Kyle Rothrock

    I would like to thank the author for the detailed experience of applying Newton’s second law and its explanation. This is a fundamental law so it is important to know it. True, your explanations seemed to me a bit complicated as they were too overflowing with calculations. If we formulate it in simple words, then Newton’s second law sounds like this: the body moves with uniform acceleration. How the ball moves after colliding with the bat – the greater the impact force, the more acceleration the ball will begin to move and, therefore, the greater the speed it will acquire during the impact. If you liked this explanation, I advise you to look on YouTube for videos in which the authors explain the basic laws of physics in simple words. I found about two hundred videos on this topic there and noticed that most of these videos have about 48 thousand views! I’m sure their authors often turned to https://soclikes.com/buy-instagram-followers for help in boosting views.

    Reply ↓
  7. Antonio

    Hi There,
    I am continually hunting on the web down articles that can help me. There is clearly a great deal to think about this. I think you made some great focuses in Features too. Continue working, extraordinary job !
    I Just Published an article for How Do Paint Sprayer Work? Your audience will love.
    Airless spray
    In the case of airless spraying, the dispersion of the paint material occurs due to a sharp pressure drop. The paint and varnish material is supplied from a special-shaped nozzle at a pressure of 200-250 atmospheres. The high dimensional uniformity of the droplets allows you to get a high-quality film and avoid losses due to colorful fog. The decorative quality of the resulting film is worse with airless spraying than with pneumatic spraying.
    Cheers
    Antonio

    Also You can Visit:

    best paint sprayer for ceilings

    Reply ↓
    1. Paul Shishechkin

      You can also promote your paint sprayers on Instagram. Visit the Krootez services website and check their offers. It gets way easier to have more likes on fresh posts with their help!

      Reply ↓
  8. Williams

    Hi,
    I have been reading out some of your posts and i can state pretty good stuff. I will definitely bookmark your site.
    Also I published some important life stuff about How much power does a 100w solar panel produce ( 100 watt solar panel ) One of the best things about these 100W solar kits is that many of them are very portable, like this model from Renogy,
    your audince will love.

    Cheers
    Williams

    Reply ↓
  9. Rifat

    There,
    I am continually hunting on the web down articles that can help me. There is clearly a great deal to think about this. I think you made some great focuses in Features too. Continue working, extraordinary job !
    I Just Published an article for How to choose a good welding machine? Your audience will love.
    Cheers
    Rifat

    Also You can Visit:

    portable welding machines

    Reply ↓
  10. Rusa

    Hi,
    Today I just surfing and stumbled your article. It’s awesome. Thanks for Sharing.
    How do you know if the piece of live edge furniture you are considering purchasing is high-quality? If you are considering adding a best wood for live edge table to your home or office, 5 things you should know before you invest in a piece.

    Reply ↓
  11. Anna Lin

    Hi there,
    Anna Lin visits your blog for the first time and find out so many great posts. Just stop by to say thanks for sharing interesting information and news.

    Reply ↓
  15. alie99

    Visit Positive Promotions to access the list of available Promotional Gifts products. Positive Promotions always strives to bring the highest quality selections for you to update your shopping cart. Never let your budget stop you from your ideal picks when you can get your subtotal deducted a bundled amount of money thanks to current Positive Promotions free shipping code 2021 or discount codes Reddit from 10% OFF

    Reply ↓
  17. Lyly Tran

    Took me time to read all the comments, but I really enjoyed the article. It proved to be Very helpful to me and I am sure to all the commenters here! We are livecoupons! Best place for coupons here.

    Reply ↓
  18. Noah Wright

    Thank you so much for sharing this wonderful post. Our team of assignment experts is providing USA Assignment Helpers for students at a very reasonable price. Get complete your assignments on time and good marks.

    Reply ↓
  20. Ella Wilson

    Thank you for sharing this informative post. These all are the main course topics of science which is also important for engineering assignment subject. If you want to get more information about this topics and related assignment help solution. Connect with us.

    Reply ↓
  24. Couponsva

    This is Couponsva, a professional blogger I enjoy writing on multiple callings with a firm grip on specialty include digital marketing, affiliate marketing, entertainment, and e-commerce blogs.

    Reply ↓
  26. oliver james

    since my childhood, I was a fan of websites. When I grew up, I left my hometown to get a specialization in the technology field. Now, my hard work has been spoken and my website email hosting uk is providing hosting in almost all aspects from windows to Linux hosting as well as for e-commerce websites.

    Reply ↓
  30. Scholarships Gov

    Nice post author. Thank you. Keep it up. This article is very informative. It is very useful for me. Kindly share more articles with me. I shall be very thankful to you.
    Scholarship

    Sinkoth 🙂

    Reply ↓
  31. RSA Full Form

    Nice post author. Thank you. Keep it up. This article is very informative. It is very useful for me. Kindly share more articles with me. I shall be very thankful to you.

    A2Z Fullform List

    Sinkoth 🙂

    Reply ↓
  38. Tej Cena

    AssignmentHelpShop.com is a one-stop shop for all your assignment needs, from law writing assistance to guidance with exam preparation and tutor sessions on any subject imaginable! We’ve got you covered 24/7 365 days per year – no matter what time of day or night it may be; whether this means an urgent request right away during office hours (we’re always available), having someone come over at midnight after school finishes because they didn’t get enough sleep studying tonight before their big test tomorrow morning OR just needing some general tutoring outside class hours.
    law assignment help

    Reply ↓
  39. Packers and movers in Vadodara

    We have dedicated Packers and Movers Service in Vadodara. We have low cost packers and movers facilities for you. We provide nationwide packers and movers services from Noida to rest of India. It is very easy to book our trucks online with few steps. We have also a dedicated team who will assist you 24/7.
    Packers And Movers in Vadodara

    Reply ↓
  40. Misti

    Very nice post you have shared with us thank you so much for sharing this useful information.. I think you made some great focuses in Features too. Continue working, extraordinary job !
    I Just Published an article for What boxing gloves best for Training and Sparring? Your audience will love.

    Also You can Visit:
    best boxing gloves

    Cheers
    Misti

    Reply ↓
  41. siam

    Very nice post you have shared with us thank you so much for sharing this useful information.. There is clearly a great deal to think about this. I think you made some great focuses in Features too. Continue working, extraordinary job !
    I Just Published an article for types of skateboards. Your audience will love.

    Also You can Visit:
    landyachtz dinghy review

    Cheers
    siam

    Reply ↓
  42. Aria

    Very nice post you have shared with us thank you so much for sharing this useful information.. There is clearly a great deal to think about this. I think you made some great focuses in Features too. Continue working, extraordinary job !
    I Just Published an article for packing tape dispenser. Your audience will love.

    Also You can Visit:
    packing tape dispenser

    Cheers
    Aria

    Reply ↓
  44. Lyly Tran

    I’d like to thank you for the efforts you’ve put in penning this blog. I’m hoping to view the same high-grade blog posts by you later on as well. In fact, your creative writing abilities has inspired me to get my own, personal site about DoorDash now

    Reply ↓
  46. aaron wyatt

    Once you set up the Canon model, you can easily go for mobile printing, laptop printing, Chromebook printing, and more. Ij.start.canon To start the setup process, follow the guidelines shown here.Print, scan, and copy are the three main features of inkjet

    Reply ↓
  50. Cheap assignment help

    Cheap assignment help the US is one of the most sought-after online. Students find this topic very interesting. We know that psychology is a discipline that studies the human mind and its behavior. To prepare psychology assignments, students need to be focused and focused and this makes the preparation of assignments very challenging and difficult. This is one of the main reasons why students should seek online help for their Do My Homework For Me assignment work.

    Reply ↓
  51. Do My Homework For Me

    In the United States, Do My Homework For Me and projects are just as important as their curriculum. Preparing for an excellent assignment can be a hassle for some students as not all students are specialized in writing a complete assignment. In college we need help in almost every subject but there are some subjects which cannot be written completely without help. To get you out of the awkward situation, Assignment Help in USA is here to help you. With years of experience, they can fulfill all your requirements within the given time frame.

    Reply ↓
  54. Max Turner

    Visit ij.start canon and find out the best way to download Canon printer drivers. Canon printers are ideal for every situation wherever you need a document, paper, or photo print or even if you wish to scan, fax, and do more.

    Reply ↓
  55. Max Turner

    All-in-one Canon Inkjet printers are suitable for home, business, school, and others to improve productivity. You can easily set up your Canon printer through drivers from Canon.com/ijsetup , wireless connection, USB, and a few components.

    Reply ↓
  56. Max Turner

    Use dragon naturally speaking to turn speech into text quickly. Download the latest version and work in Voice mode and be Hands-Free. Dictate Documents and complete the transcription faster. Use various options and features to get more useful and correct output withdragon naturally speaking voice recognition software. Dragon by Nuance is counted as the leading software for voice to text recognition.

    Reply ↓
  57. Max Turner

    All-in-one Canon Inkjet printers are suitable for home, business, school, and others to improve productivity. You can easily set up your Canon printer through drivers from canon.come/ijsetup , wireless connection, USB, and a few components.

    Reply ↓

Leave a Reply

Your email address will not be published. Required fields are marked *