SciShow
When The Universe Will End
Hank serves up a buffet of news items that includes an approximate date for the end of everything, scientific proof that when it comes to sex bigger IS better, and a look behind how the London Olympics are going green. Bon appetit!
Bozeman Science
Energy Reduction
The best form of energy available to the world is energy reduction. In this video Paul Andersen explains how energy conservation and energy efficiency and be used to decrease energy during peak demand. Tiered and variable pricing, as...
PBS
Noether's Theorem and The Symmetries of Reality
Conservation laws are among the most important tools in physics. They feel as fundamental as you can get. And yet they're wrong - or at least they're only right sometimes. These laws are consequences of a much deeper, more fundamental...
MinuteEarth
Smartphones: A New Model for Energy Efficiency?
The way smartphones made many devices nonessential is a model for a new way to think about improving energy efficiency.
SciShow
The (Arguably) Most Important Instrument in Physics
Thermometers might seem like a basic instrument, but science would not be the same without them, and they helped us understand one of the most important ideas in all of science: the conservation of energy.
Curated Video
Asteroid Gravity: Escape Speed, Projectile Motion, and Impact Velocity
New ReviewMaster key physics concepts like escape velocity, projectile height, and impact speed using energy conservation on a low-gravity asteroid—ideal for AP and IB exam prep
Curated Video
The Many Worlds Interpretation of Quantum Mechanics Explained with Sean Carroll
New ReviewThe many worlds interpretation of quantum mechanics was put forth by graduate student Hugh Everett in 1957. It was considered preposterous at the time, but is now going mainstream. It requires us to change our paradigm about our...
Curated Video
How the Universe Breaks the Law of Energy Conservation
New ReviewSUMMARY The law of energy conservation may be the most fundamental law in physics. It says that overall energy is always conserved. It can never be created nor destroyed - it can only change form. But this law is probably violated by our...
Curated Video
Understanding Rotational Kinetic Energy Storage
This video explains the concept of rotational kinetic energy stored in a flywheel, demonstrating its application in vehicles like trucks for efficient energy usage
Curated Video
Physics Problem: Work-Energy Theorem for a Bullet Entering a Block
This video solves a classic physics problem using the Work-Energy Theorem, demonstrating how to calculate the force exerted on a bullet as it penetrates a block and the additional distance it travels before stopping.
Curated Video
Physics Problem: Collision and Rotational Swing of a Rod-Block System
This content walks through a multi-step physics problem involving a block sliding down a frictionless surface and undergoing an inelastic collision with a pivoted rod, causing the combined system to swing upwards. It demonstrates the...
Curated Video
Work Done by Forces and Change in Kinetic Energy: Physics Problem Solved
This video demonstrates how to calculate the net work done on an object by multiple forces and explains its relationship to the change in kinetic energy. It walks through a solved physics problem, ideal for understanding work-energy...
Curated Video
Energy Conservation Principle: Mass on a Table with a Spring and Pulley
This video illustrates the energy conservation principle by solving a physics problem involving a mass connected to a spring on a table, which then pulls a hanging mass via a pulley. It demonstrates how to calculate the speed of the mass...
Curated Video
Principle of Conservation of Energy: Solving for Projectile Motion
This video demonstrates the principle of conservation of energy by solving a physics problem that determines the velocity of a ball at two different points during its projectile motion. It illustrates how mechanical energy remains...
Curated Video
Physics Problem: Ball Rolling and Projectile Motion Combined
This content solves a multi-part physics problem involving a solid ball that first rolls smoothly along a horizontal path, then up a ramp onto a plateau, and finally launches horizontally to land at a specific distance. It demonstrates...
Curated Video
Kinetic and Potential Energy of a Ball: A Pendulum Problem
This video solves a physics problem calculating the change in potential and kinetic energy of a ball attached to a string as it swings down from a horizontal position, passing through a peg. It demonstrates energy conservation principles...
Curated Video
Work Done by a Force on a Spring: Finding Spring Constant & Potential Energy
This video walks through a physics problem to determine the spring constant of a spring and the potential energy stored when it is compressed by a falling object. It demonstrates calculations related to spring forces and energy.
Curated Video
Falling Chimney Physics: Analyzing Rotational Motion and Acceleration
This content delves into the physics of a falling cylindrical chimney, treating it as a thin rod rotating about its base. It uses energy conservation to determine the angular velocity and subsequently calculates the radial and tangential...
Curated Video
Work Done by Gravity & Potential Energy Change: A Physics Problem
This video solves a physics problem demonstrating how to calculate the work done by gravitational force on an object moving along a curved path, and the resulting change in its potential energy.
Curated Video
Kinetic Energy and Friction in Rolling Motion
This content explores the kinetic energy of a rolling object, comprising both rotational kinetic energy (1/2 I omega^2) and translational kinetic energy (1/2 M v_com^2). It emphasizes energy conservation in rolling, the crucial role of...
Wonderscape
Hibernation: Nature's Winter Survival Strategy
This video delves into the fascinating world of animal hibernation, explaining how and why various species, including mammals, amphibians, and invertebrates, enter this dormant state. It covers the concepts of hibernation and estivation,...
TMW Media
Potential Energy And Energy Conservation: Solving a problem
Given certain parameters, how would you solve this problem? Potential Energy And Energy Conservation, Part 3
TMW Media
Potential Energy And Energy Conservation: Solving another problem, Part 2
Given certain parameters, how would you solve the second part of this problem? Potential Energy And Energy Conservation, Part 5