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...

Test the limits of gravity while encouraging full class participation with this thrilling lesson. Pupils investigate the meaning of work and how it is equivalent to energy. They explore the joule and apply it as a unit of work. They...

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...

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 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. 

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...

How do you describe gravity? Physics scholars watch as the narrator asks passers-by to try their hand at summing up a common force. The amusing answers focus on attraction and 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...

How does the absence of gravity affect the human body? The skeletal system, circulatory system, and the sense of balance are all impacted. With a very casual tone, an astronaut explains the changes to these body systems and also an...

Groups simulate an orbit using a piece of string and a water balloon. Individuals spin in a circular path and calculate the balloon's velocity when the clothes pin can no longer hold onto the balloon.