let us study work energy equation for rigid bodies. as we have already studied . for rigid bodies. we can simply state these can never be deformed, rigid means, these can never be deformed . rigid bodies can contain only ki-netic energy elastic potential energy can never be stored in these. so , independently in […]

# Tag: kinetic energy

Hi. This week’s lab is on exploring the mechanical energy of a volleyball as it gets tossed or bounced. Of course, you know something about the conservation of energy, where the kinetic energy as you throw something up changes into gravitational potential energy and changes back to kinetic on the way down so then you […]

As we venture into the topic of thermochemistry, we first need to lay the groundwork of some basic terminology. As we’ve previously discussed, energy is the capacity to do work and work is a force acting over a distance. We can categorize energy as kinetic or potential energy. Kinetic energy is the energy of motion […]

– Good morning. Today we are going to use calculus to derive the work-energy theorem. And I do understand because this is an algebra-based class that many of you have not taken calculus yet. However, I consider it important to sometimes see math which is a little bit more advanced than what you currently understand. […]

I have here a pendulum. I have an object that weighs 15 kilograms and I can lift it up one metre, which I have done now That makes I have done work. mgh is the work I have done, believe me. I have increased the potential energy of this object, 15 times 10, to 150 […]

We need energy for pretty much everything, from keeping our bodies moving to keeping the sun burning. But where does it come from? And /why/ do we need it? What /is/ energy, anyway? Hey there! My name’s Alie Energy is pretty complicated, but we’re going to figure it out together! Physicists often describe energy as […]

A hydrogen atom has less mass than the combined masses of the proton and the electron that make it up. That’s right, less. How can something weigh less than the sum of its parts? Because of this. And today, we’re going to clarify what the most famous equation in physics really says. [MUSIC PLAYING] E […]

Hi. It’s Paul Andersen and welcome to disciplinary core idea PS3A which is on definitions of energy. We can look at a lightning strike and we know that there’s energy there somewhere. But a question that we’ve always wondered is what is energy? And as we’ve discovered more and more about energy and different fields, […]

(light music) – Let’s talk about energy. So what happens to this ball’s energy level as I lift it upward? It increases, right? As I do more and more work to lift it higher and higher against the pull of gravity I am increasing this ball’s gravitational potential energy. So what happens to all that […]

The potential energy of an object due to gravity depends on the object’s height and weight. An increase in either of these will increase the object’s potential energy. A skier at the top of a small slope has less potential energy than a skier of the same weight who is at the top of a […]