Crash Course
Temperature: Crash Course Physics
Bridges. Bridges don't deal well with temperature changes. In order to combat this, engineers have come up with some work arounds that allow bridges to flex as they expand or contract. In this episode of Crash Course Physics, Shini talks...
Curated Video
Frozen Balloon
We lower a helium-filled balloon into liquid nitrogen to see how the change in temperature affects its volume. When it hits the cool liquid nitrogen, the gas inside contracts and the volume of the balloon decreases. When it is removed...
Curated Video
Ball and Hoop
We use a metal ball and hoop to demonstrate heat expansion. When cool, the ball fits through the hoop, but there is little extra space. The ball is then heated over a Bunsen burner. When hot, the ball doesn't fit through the hoop. We see...
Curated Video
Expanding oceans
Why are sea levels rising at twice the rate that scientists predicted? Material processes - Changing materials - Expansion and conduction Learning Points Thermal expansion is due to molecules gaining energy. The thermal expansion of ice...
Curated Video
Thermal conductors
Why does metal expand when it gets hot? Material processes - Changing materials - Expansion and conduction Learning Points Conductors are materials that allow energy to flow easily through them. Thermal conductors allow heat energy to...
Curated Video
Why do hot air balloons float?
Find out how hot air balloons work. Material processes - Solids, liquids and gases - Gases Learning Points Air is made up of different gases. The molecules in gas are widely spaced. When heated the molecules of a gas move around and...
Next Animation Studio
Sea-level accelerating faster than previously thought: study
A new study has revealed that sea levels have been rising at an unprecedented rate. Global sea levels had been rising at a minimal rate of less than half an inch per decade between 1900 to 1990, but have since risen 1.2 inches per...
Curated Video
Laser Tattoo Removal Explained
During the tattoo removal process, a laser breaks up the permanent ink particles, allowing the body's immune system to absorb and eliminate the ink. Learn how white blood cells and light work together to break down the materials in a...
NASA
What's Up With Sea Level Rise?
How much and how fast will sea level rise in the coming decades? What makes sea level rise hard to predict? Who will be affected? NASA experts and guests discuss how sea level has risen an average of about seven inches around the globe...
Curated Video
How Thermocouples Work
Thermocouples, learn how thermocouples work in this video. We'll cover types of thermocouples, applications of thermocouples, the physics behind thermocouples as well as experiments to show how it works.
Professor Dave Explains
IIT/JEE Chemistry Practice #9: Molarity/Molality
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Science Buddies
Curl Metals With Heat!
Do you like gift wrapping? If you do, you have probably curled a ribbon with scissors before. Have you ever wondered why the ribbon curls when you run a scissor blade down one side of it? The answer is that when you apply pressure on the...
Higgsino Physics
The Actual Reason Why Matter Expands When Heated - Thermal Expansion
A physics animation about why matter expands when heated. Thermal expansion is happens because of the morse potential. When heated (adding more kinetic energy in the molecules) the molecules have on average a bigger molecule, but why?...
msvgo
Thermal Expansion
It explains area expansion, volume expansion, constants of proportionality and relation between coefficient of linear expansion and volume expansion with examples.
Getty Images
Hot air balloon being inflated, flame from below, Kenya, Africa
Hot air balloon being inflated, flame from below, Kenya, Africa
PBS
Thermal Expansion: Materials and Design | UNC-TV Science
Things are heating up and expanding! A quick video lesson presents the concept of thermal expansion. It shows learners several examples of where they may experience thermal expansion and provides multiple applications of the principle as...
Crash Course
Temperature: Crash Course Physics #20
Temperature can be hard on outdoor structures. Learn how engineers consider thermal energy effects while constructing structures such as bridges. The video lesson also considers how heat affects gases by exploring the ideal gas laws....
PBS
Pbs Learning Media: Moving Atoms
A materials science and engineering professor, Dr. Chris Muhlstein of Penn State University, explains how to rearrange atoms without touching them with your hands. [3:06]