Texas Education Agency
Texas Gateway: Projectile Motion
This resource provides alternative or additional tier-one learning options for students learning about projectile motion.
CK-12 Foundation
Ck 12: Plix Series: Satellites, Shuttles, and Space Stations
[Free Registration/Login Required] Simulate the launch of a rocket to see how rocket propulsion works. After the activity, answer a challenge question to check for understanding.
Sophia Learning
Sophia: Improperly Defining a System
This presentation explains why a poorly defined system can lead to incorrect answers in physics problems.
Sophia Learning
Sophia: System of Particles in an Object
This presentation explains why an object remains at rest, despite the fact that the particles within the object are in motion.