Interactive
Curated OER

Problem Solving Involving Two People with Incorrect Watches

For Students 8th - 11th
In this problem solving worksheet, students calculate what happens when two people plan to meet but their watches are wrong.  The solutions with explanations is provided.
Interactive
CK-12 Foundation

Free Body Simulation

For Students 9th - 12th Standards
To show the magnitude and direction of all forces acting upon an object, scientists use a free body diagram. This simulation serves as an introduction to free body diagrams allowing scholars to build their own. Pupils select the proper...