This activity was created by Jim and Jane Nelson, and is from the PTRA manual "Role of the Laboratory in Teaching Introductory Physics." It is a life-sized activity for students to investigate the forces and torques...

In this activity from the AAPT/PTRA manual "Role of the Laboratory in Teaching Introductory Physics", students are asked to find the condition for maximum power transfer from a power supply to a load resistor. By adding...

This lesson builds upon the previous one (Newton's Second Law) by introducing students to kinetic and potential energy. Topics include a brief description of these two forms of energy, a discussion of gravity as a form...

The search is still on for a unifying quantum theory of the gravitational force and hopes are pinned on the graviton - a hypothetical elementary particle that transmits the force of gravity. Why is the search for the...

Created by Tom Henderson of Physics Classroom.com, this page is an animated tutorial featuring a simple pendulum attached to a pivot point by a string. The pendulum motion is accompanied by corresponding energy bar...