Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and (seemingly) random motion. For more details see http://sciencedemonstrations.fas.harvard.edu/presentations/pendulum-waves The period of one complete cycle of the dance is 60 seconds. The length of the longest pendulum has been adjusted so that it executes 51 oscillations in this 60 second period. The length of each successive shorter pendulum is carefully adjusted so that it executes one additional oscillation in this period. Thus, the 15th pendulum (shortest) undergoes 65 oscillations. Our apparatus was built from a design published by Richard Berg [Am J Phys 59(2), 186-187 (1991)] at the University of Maryland. The particular apparatus shown here was built by our own Nils Sorensen. Video courtesy of Harvard Natural Sciences Lecture Demonstrations, © 2010 President and Fellows of Harvard College
Download Free Android App of "Smart Learning for All" @ https://goo.gl/ZvPxzt Energy can neither be created nor it can be destroyed. Energy can only be converted from one form to another. The unit of energy is joules. Energy can broadly be classified as potential energy and kinetic energy. Potential energy is the energy in a body due to its position. While kinetic energy is the energy in a body due to its motion. The formula for potential energy is mgh, where m stands for mass, g stands for gravitational acceleration and h stands for height. Now, let us calculate the potential energy possessed by a boy who is at the top of a tree assuming that his mass is 30 kg, gravitational acceleration is 9.8 meters per second squared and height is 20 meters. Using the formula of potential energy, we can say that the potential energy possessed by is 5880 joules. However, when the boy begins to fall his potential energy starts getting converted into kinetic energy. Just before he lands, all his potential energy gets converted into kinetic energy. The formula to calculate kinetic energy is 1 upon 2 into m into v square, where m stands for mass and v stands for velocity. For more educational videos please visit http://www.SmartLearningforAll.com Also, don't forget to subscribe to our YouTube channel.
String up a pendulum, move the bob to one side and let go to set the pendulum into oscillations. Use a stopwatch to measure the time the pendulum takes to complete ten oscillations. Diving this time by 10 gives us the period of the pendulum i.e. the time taken to undergo one oscillation. Decrease the pendulum's length and repeat the above to get the new time period. We see that as the length becomes shorter, the time period decreases. This shows us that the length of a pendulum and its time period are related
When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to walk us through it. Also, Energy and Power! -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is sponsored by Squarespace. http://www.squarespace.com/crashcourse -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Purchase: http://hilaroad.com/video/ Galileo's investigation of the pendulum played a role in the evolution of science. He performed some of the first experiments while discovering the relationship among length, mass and displacement. If you are teaching the scientific method, the pendulum is a good project to start with. Galileo probably gained insight into many issues around motion from his investigation of the pendulum. The video also mentions issues with the church and academia.
Follow us at: https://plus.google.com/+tutorvista/ Check us out at http://www.tutorvista.com/content/physics/physics-i/measurement-and-experimentation/simple-pendulum.php Simple Pendulum A simple pendulum that consists of a mass less and inelastic thread whose one end is fixed to a rigid support and a small bob of mass m which is suspended from the other end of the thread. Let l be the length of the pendulum, When the bob is slightly displaced and released, it oscillates about its equilibrium position. Please like our facebook page http://www.facebook.com/tutorvista
Meet Galileo Galilei, hailed as the ‘father’ of modern observational astronomy, in our great free video. This video is packed full of facts and information about Galileo and is an entertaining resource to help children describe how a significant individual has influenced the UK and wider world. It's just one of over 1000 resources available on The Hub, our online portal for schools using Cornerstones. For more information, click here: https://cornerstoneseducation.co.uk/products/the-hub/
Get Your Crash Course Physics Mug here: https://store.dftba.com/products/crashcourse-physics-mug Bridges... bridges, bridges, bridges. We talk a lot about bridges in Physics. Why? Because there is A LOT of practical physics that can be learned from the planning and construction of them. In this episode of Crash Course Physics, Shini talks to us about a particular mistake made in engineering the Millennium Bridge which allows us to talk about simple harmonic motion. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
The best and the biggest channel for science videos for kids. Kindergarten,preschoolers ,primary school kids can learn about the basics of sound with help of this animated education video. How sound is produced, how sound travels,what are sound waves and what are vibrations, all elementary questions are answered in an interesting and creative way.
This is a selection from the Bill Nye: Motion episode that explains the basics of motion and push/pull forces. This content has been edited to better cater to the primary grades, specifically the California State Standards: Physical Sciences 1.A-D. Enjoy this fun education! A big thank you to Disney, who owns this material and allows people to watch the curated, shortened version of this episode that I have created for the lower grades. I greatly appreciate your support of science and accessible content for all. Disney receives all monetization profits from this video.