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TED-Ed: Why Our Muscles Get Tired
You're lifting weights. The first time feels easy, but each lift takes more and more effort until you can’t continue. Inside your arms, the muscles responsible for the lifting have become unable to contract. What’s going on? Christian Moro explains how exactly our muscles operate, and what causes them to become fatigued.
TED-Ed: What Is Entropy?
There’s a concept that’s crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. It’s entropy, and it’s notoriously difficult to wrap our heads around. Jeff Phillips gives a crash course on entropy.
Easy Peasy Science — Physics and Chemistry (Levels 1-8)
Found a problem? Check here. Course Description — Students will study chemistry and physics through experimentation, demonstration, readings, videos, and a variety of online activities. They …
Easy Peasy Physics with Lab
Honors Physics Found a problem? Check here. Credits: 1 Prerequisite: At the very least, you need to have taken algebra and know basic trigonometry, which can be found at Khan Academy. Recommended: …
PhET: The Ramp
Explore forces, energy and work as you push household objects up and down a ramp. Lower and raise the ramp to see how the angle of inclination affects the parallel forces acting on the file cabinet. Graphs show forces, energy and work.
PhET: Energy Forms and Changes
Explore how heating and cooling iron, brick, water, and olive oil adds or removes energy. See how energy is transferred between objects. Build your own system, with energy sources, changers, and users. Track and visualize how energy flows and changes through your system.
PhET: Energy Skate Park
Learn about the conservation of energy at the skate park! Build tracks, ramps, and jumps for the skater. View the skater's kinetic energy, potential energy, and thermal energy as they move along the track. Measure the speed and adjust the friction, gravity, and mass.
PhET: Energy Skate Park: Basics
Learn about conservation of energy with a skater gal! Explore different tracks and view the kinetic energy, potential energy and friction as she moves. Build your own tracks, ramps, and jumps for the skater.
PhET: Hooke's Law
Stretch and compress springs to explore the relationships between force, spring constant, displacement, and potential energy! Investigate what happens when two springs are connected in series and parallel.
TED-Ed: Physical Science Lessons
TED-Ed celebrates the ideas of teachers and students around the world. Discover hundreds of animated lessons, create customized lessons, and share your big ideas.
The Good and the Beautiful Wonders of Energy
The full-color course book guides the parent through each lesson in the Wonders of Energy science course. Hands-on activities, engaging videos, vocabulary words, beautiful illustrations and images, along with engaging information is found throughout the course. Once you gather any simple lesson supplies, the lessons ar