Potential and Kinetic Energy. The law of conservation of energy. Energy cannot be created. Energy cannot be destroyed. It can only be converted from one form to another. The unit of energy is joules. The formula for potential energy is mgh, M is equal to Mass, g is equal to gravitational acceleration and h is equal to height. When we fall, potential energy starts getting converted to kinetic energy. Just before we land, all potential energy gets conveerted to kinetic energy. To calculate kinetic energy, kinetic energy is equal to 1 upon 2 into m into v square, where m is equal to mass and v is equal to velocity. Subscribe to our YouTube channel: Smart Learning for All.
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
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.
Newton's Cradle explained through simple science! Written and edited by: Kevin Wei --- This video was a project for my high school physics class. It was awarded "honorable mention" in the 1st Annual Southern California American Association of Physics Teachers: Student Physics Video Contest (http://www.physicsvideos.net/contest2012.html). Kevin Wei http://kevwei.com Facebook: http://www.facebook.com/KevinWeiTV Inquiries: thekevinway at gmail Made with my good friend Juan David Lopez: http://www.youtube.com/KineCinemaMedia --- VIDEO TRANSCRIPT: You may have seen this gadget lying around in places like office cubicles. The Newton's Cradle is an apparatus which consists of several rocking metallic spheres. It is commonly seen as an executive toy -- a novelty item that is left on the desk of corporate executives and other office employees, yet serves absolutely no work-related purpose. Named after the physicist Sir Isaac Newton, it demonstrates the conservation of momentum and energy. If one ball is raised, what do you think will happen when it is released? First, let's look at some physics principles. Newton's Cradle is a prime example of an elastic collision. In an elastic collision, two objects collide and return to their original shapes with no loss of total kinetic energy, just like pool balls. The law of conservation of momentum states that the total momentum of all objects interacting with one another remains constant regardless of the nature of the forces between the objects. What this basically means is that the momentum that one ball loses its equal to the momentum that the other one gains. Also, energy is conserved. As the first ball is raised, the system's gravitational potential energy increases. When it is released, the ball gains kinetic energy. At the bottom, also known as it's equilibrium point, it's energy becomes solely kinetic. As the ball swings past its equilibrium position, the kinetic energy decreases while the gravitational potential energy increases. In a vacuum, Newton's Cradle will ideally run forever due to the absence of fictional forces. Because of the conservation of energy and momentum, the distance here (show initial height) is almost the same as the resulting height here (show final height). As Newton has started, forces always exist on pairs. The initial force is ideally equal and opposite to its resulting force.
Check out this experiment and many others at http://www.incrediblescience.com Demonstrate the law of conservation of energy and momentum! This large Newton's Cradle is one of the most incredible physics toys ever made. Named after Sir Isaac Newton and his Third Law of Motion. This high quality version is over 7 1/4" tall and its polished metal and wooden base provides a great base for the balls to swing back and forth on.
Learn more at http://www.stevespanglerscience.com/content/science-video/the-coffee-cup-pendulum There's a strong possibility that Steve Spangler's swinging table tricks might come to a crashing halt. It's a test of Steve's scientific skill and Mark's quick reflexes. Grab a coffee cup and a spoon and prepare to amaze your dinner guests. About Steve Spangler Science... Steve Spangler is a celebrity teacher, science toy designer, speaker, author and an Emmy award-winning television personality. Spangler is probably best known for his Mentos and Diet Coke geyser experiment that went viral in. Spangler is the founder of www.SteveSpanglerScience.com, a Denver-based company specializing in the creation of science toys, classroom science demonstrations, teacher resources and home for Spangler's popular science experiment archive and video collection. Spangler is a frequent guest on the Ellen DeGeneres Show and Denver 9 News where he takes classroom science experiments to the extreme. For teachers, parents or DIY Science ideas – check out other sources of learning: Join the Science Club and check out other cool science experiments at - http://www.SteveSpanglerScience.com Sign up to receive a FREE Experiment of the Week- http://www.stevespanglerscience.com/experiment-of-the-week Attend a Spangler Hands-on Science Workshop for Teachers - http://www.stevespanglerscience.com/training Watch Steve on Local and National Media Appearances on YouTube at: https://www.youtube.com/user/SpanglerScienceTV
http://mocomi.com/ presents: What is a Pulley? Pulley is a simple machine and comprises of a wheel on a fixed axle, with a groove along the edges to guide a rope or cable. Pulleys are used to reduce the time and energy taken to lift heavy objects. Here, Load = the weight of an object Effort = the amount of force required to lift or move this object. When you put two or more wheels together, and run a rope around them, you have created a great lifting machine. As you add more pulleys, you increase your mechanical advantage and it becomes very easy to lift the same load. The trade-off is that as you increase the number of pulleys, you require a greater amount of rope to achieve the same result. Since you have decreased the effort needed to lift the load you have to apply the force for a longer period of time. Understand the mechanism of the simple machine, the pulley. Understand and learn about how these machines make work a lot more easier and less time consuming with the help of this animated learning module for kids. To learn more about what is a pulley and how it works go to: http://mocomi.com/pulley/ For more fun learning physics videos and articles visit: http://mocomi.com/learn/science/physics/ Follow Mocomi Kids - Top educational website for kids, on Facebook https://www.facebook.com/mocomikids/ on Twitter https://twitter.com/MocomiKids on Pinterest https://www.pinterest.com/mocomikids/ on Google+ https://plus.google.com/+mocomikids/ on LinkedIn https://www.linkedin.com/company/mocomi-kids
Patterns made of shapes, patterns made of grapes. Patterns in the air, patterns everywhere. Patterns in an app, patterns in this rap...so sing and dance along to this lit pattern song by Blazer Fresh! Create a free account on GoNoodle.com now and find hundreds of ways to move! -- https://goo.gl/fA6qK3 Have you subscribed to the GoNoodle YouTube channel? What are you waiting for!? Subscribe today for exclusive content! -- http://goo.gl/FkLrzy About GoNoodle GoNoodle gets kids moving to be their strongest, bravest, silliest, smartest, bestest selves. Over 10 million kids each month are dancing, stretching, running, jumping, deep breathing, and wiggling with GoNoodle at GoNoodle.com -- https://goo.gl/fA6qK3 Lyrics: Patterns in the air Patterns everywhere! Patterns made of shapes Patterns made of grapes Patterns on a cheetah Patterns on my feetah Patterns in an app Patterns in this rap Make a pattern Make a pattern Let's make a Pattern Alright Make a pattern Make a pattern Let's make a Pattern Ok, here’s one... Banana, Banana, Meatball Banana, Banana, Meatball Banana, Banana, Meatball Banana, Banana, Meatball Banana, Banana, Meatball You got it! Turn it up now! Make a pattern Make a pattern Let's make a Pattern Alright Make a pattern Make a pattern Let's make a Pattern Ok. Here's one: Nod - Clap - Shake your hips Nod - Clap - Shake your hips Nod - Clap - Shake your hips Nod - Clap - Shake your hips Nod - Clap - Shake your hips Bring it back! C’mon y’all! Make a pattern Make a pattern Let's make a Pattern Alright Make a pattern Make a pattern Let's make a Pattern Ok. Here's one! Loud! Loud! Quiet. Quiet. Loud! Loud! Quiet. Quiet. Loud! Loud! Quiet. Quiet. Loud! Loud! Quiet. Quiet. Loud! Loud! Quiet. Quiet. Patterns when I walk Patterns when I talk Patterns in my brain Patterns down the drain! Patterns on my nail Patterns on a snail Patterns on the walls Going straight into my eyeballs! Plaids and Zig Zags, Stripes and Spots Spirals, Tiles, Tater Tots Everywhere I look these patterns emerge And then I start to get this funny urge... To make a pattern Make a pattern Let's make a Pattern Alright. Make a pattern Make a pattern Let's make a Pattern Ok.last one: Elbow - Stomach - Stomach - Elbow! Elbow - Stomach - Stomach - Elbow! Elbow - Stomach - Stomach - Elbow! Elbow - Stomach - Stomach - Elbow! Elbow - Stomach - Stomach - Elbow! Patterns in the air Patterns everywhere! Patterns made of shapes Patterns made of grapes Patterns on a cheetah Patterns on my feetah Patterns in an app Patterns in this rap! One more time! C’mon! Make a pattern Make a pattern Let's make a Pattern I really love patterns. Make a pattern Make a pattern Let's make a Pattern Jump up and down! I'm like totally obsessed with patterns. My nickname is patterns! Anywhere you look you can see a pattern and point it right out. You just gotta be paying attention.