SciShow
Why's a Meter a Meter?
Meter is the standard unit of length used by most countries around the world. But how did they define it?
Let's Tute
Basics Of Light Quiz
This video covers natural and artificial sources of light, including topics such as bioluminescence, the visible spectrum, and the use of different wavelengths of light for various purposes such as heat therapy and currency detection....
TED-Ed
The Fundamentals of Space-Time: Part 2
The mind-bending concept of space-time is further discussed by two cartoon scientists in this second of three animated films. Assign each part and the accompanying Think questions as homework or as an enrichment when working on motion...
Veritasium
First Image of a Black Hole!
Have scholars ever wondered what a black hole looks like? See the first image of a massive black hole and learn about what a black hole is, how it forms, and how telescopes took images from around the world. The video then relates the...
Veritasium
How to Understand the Image of a Black Hole
What is a black hole? Individuals hear a detailed explanation about what a black hole is, how it forms, and how it effects light and matter. The characteristics of a black hole determine the image it produces in telescopes, and...
MinutePhysics
Spacetime Intervals: Not EVERYTHING Is Relative — Special Relativity Chapter 7
Special relativity proves that both length and time are relative—but, that's not the complete story. Scholars learn how both length and time have absolute values that don't vary with perspective. The seventh lesson in the eight-part...
MinutePhysics
Lorentz Transformations — Special Relativity Chapter 3
Generally, Lorentz transformations require high level math skills, but conceptual understanding can slip just beyond the grasp of many. Using a story and graph about the time and motion of people and cats, viewers of a short video can...
Be Smart
Why Is This Ice Blue?
What gives glaciers their blue hue? Study the phenomenon from the inside out with a video from an engaging science playlist. The narrator describes the conditions present in glacial ice, then explains how the substance affects visible...
Physics Girl
Special Relativity and the Twin Paradox
Everyone knows that one twin is always older in a pair. But, could a twin be years older? A video from an extensive physics playlist explains Einstein's theory of special relativity. Topics include the speed of light, special versus...
Physics Girl
What Is Color?
If your electromagnetic spectrum lesson plan has you feeling a little blue, here's a resource that will have you tickled pink! A video from a vast physics playlist describes color from its humble beginnings as a wavelength to its...
Physics Girl
How Rainbows Form
Somewhere over the rainbow ... the sky appears to be darker than below it? Why is that? A video from an interesting physics playlist illustrates the interaction between the visible spectrum and droplets of rain. It also doubles the...
Physics Girl
Strange Unexplained Cosmic Rays
The truth about strange unexplained cosmic rays? They're still unexplained! Share one of our universe's many unsolved mysteries with your class using a video from the Physics Girl playlist. The resource describes what cosmic rays are,...
PBS
Have Gravitational Waves Been Discovered?!?
Einstein was right ... again? Introduce young physicists to the final piece in Albert Einstein's Theory of Relativity through a video from PBS covering space time and measurement. Discover where gravitational waves come from, the...
PBS
The Speed of Light is NOT About Light
Just when you thought you had this figured out! Engage young physicists in an interesting look at the nature of a universal constant with a video, part of a PBS playlist on space time and measurement....
PBS
The Origin of Matter and Time
Time does not exist as a universal constant, yet it can be defined as a concrete reality. These concepts and more provide the inspiration for an episode of Space Time's larger series of the same name. It discusses causal order, the...
PBS
How Do You Measure the Size of the Universe?
The universe is 90 billion light years in diameter. How do scientists measure something so huge? Space Time explains the process as part of its larger Cosmology playlist. The video addresses the steps to solving the puzzle as well as how...
Veritasium
Can You Go the Speed of Light?
Is it physically possible to travel at the speed of light? A video in the Veritasium playlist discusses Einstein's Theory of Relativity. The narrator then challenges learners to consider the classic thought experiment: If you travel at...
Veritasium
Will This Go Faster Than Light?
Is it possible to travel faster than the speed of light? In a word, no—not so far, at least! Explore the possibilities with a video from Veritasium. The narrator responds to viewer-submitted ideas for creating devices or conditions that...
Veritasium
Misconceptions About the Universe
Think you know a lot about the universe? You may, or may not, be right! Aspiring astrologists examine our ever-expanding universe with a video from the Veritasium playlist. The narrator discusses the observable universe, the time it...
Crash Course
Black Holes
Here's a black hole video that will definitely pull you in! Give pupils something to ponder as they explore the depths of the strangest entities in the universe. Topics include stellar mass and supermassive black holes, what you'd...
3Blue1Brown
Snell's Law Proof Using Springs
Does light always travel in a straight line? The narrator of a short video discusses the path light travels when going between different mediums and points out that light will want to travel on the path that minimizes the travel time....
MinutePhysics
Another Physics Misconception
Your physics class will really pick up speed after watching an insightful video about momentum! Learners discover the rest of the story of the P = mv equation. The narrator shows the difference between massed and massless objects in the...
MinutePhysics
E=mc² is Incomplete
The most famous equation in the world isn't telling us the whole story! What if an object is actually moving? The narrator introduces momentum into the mix, resulting in the sad truth that traveling at the speed of light is almost, but...
MinutePhysics
Einstein's Proof of E=mc²
You see it everywhere — t-shirts, coffee mugs, posters ... but why was Einstein's most famous equation such a turning point in our understanding of the relationship between matter and energy? The short video demonstrates the math...