Gravity

Between the pull of gravity and the push of air pressure, it's a wonder animals can balance or move at all. With a hands-on instructional activity about the center of gravity, learners discuss their own experiences with the topic, then...

Many realistic situations of active forces are presented here along with diagrams. The direction of movement, acceleration and gravity are labeled on each picture to help understanding.  A summary of the direction of acceleration should...

When you lecture on the center of mass and center of gravity, show this presentation as a note-taking guide for your physical science class. Pause at the fifth slide to let them find the center of mass for their pencils. Also ask them...

The apple may not fall far from the tree, but it does indeed fall. Young scientists get the full understanding of why that phrase is still important today as they explore Sir Isaac Newton and his laws of gravity.

Does space have its own gravity? And, if so, why do astronauts just float around in the space station? Science sleuths examine the forces acting upon astronauts in the International Space Station with help from the narrator. He...

Gravity is thoroughly defined in this short, but weighty, featurette. The relationship of mass to force is incorporated, and the idea that gravity can also attract energy is introduced. In a flipped classroom situation, have learners...

Gravity impacts the way you throw a ball and the way the Haumea travels around the sun. The video introduces gravity as a force. It describes the various types of orbits, escape velocity, and weightless mass. 

Is it possible to defy gravity? Not really. With force and inertia, we can act against it for a little while, but, eventually, gravitational force will pull us back to Earth. The relationships among mass, force, and inertia are all...

Astronauts on the ISS continuously fall in a curve thanks to gravity. A video describes the idea of falling along a curved path. Using computer animations, an apple demonstrates the warping of spacetime while the narrator explains the...

Most people know the famous story of Sir Issac Newton and the apple. Watch that example animated, narrated, and explained. Class members can learn what gravity is, why it pulls things down, how strong it is, and how it's related to...