Online College Courses for Credit

Earth’s Gravitational Force

Earth’s Gravitational Force

Author: Katelyn Wilson


Grade 5 - Space Systems: Stars and the Solar System
5-PS2-1. Support an argument that the gravitational force exerted by Earth on objects is directed down.
PS2.b Types of Interactions: The gravitational force of Earth acting on an object near Earth’s surface pulls that object toward the planet’s center.

See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

37 Sophia partners guarantee credit transfer.

299 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 32 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Who Discovered Gravity?

Please watch & take notes!

Nasa and Gravity

Please visit this website,, read, take notes and have fun!

Take notes!