What Is Torque? (Screencast)
By Terry Bartelt
Learners read a description of torque and study the factors that cause its magnitude to change.
Using Graphs to Explain Motion (Screencast)
By Henry Merrill
In this screencast, you'll observe two vehicles moving across the screen at different rates then describe the motion. Additionally, you'll select the corresponding graphs of distance vs. time, velocity vs. time, and acceleration vs. time for each vehicle.
Construction of Free-Body Diagrams
By Kim Ristow
In this learning activity you'll explore a step-by-step process to solve simple free-body diagrams. They identify forces acting in the x or y direction in interactive exercises.
Methods of Producing Electricity
In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.
What Is Electricity?
The learner studies how electrons travel from one atom to the next. Examples demonstrate how voltage is created by the use of a battery or through magnetism. A quiz completes the activity.
In this animated object, learners examine how thermal energy is transferred by conduction, convection, and radiation. A brief quiz completes the activity.
Mass Versus Weight
In this learning activity you'll explore the difference between mass and weight.
Newton's Second Law of Motion - Video
In this learning activity you'll examine force, mass, and acceleration to understand this "Law of Acceleration."
Newton's Third Law of Motion - Video
In this learning activity you'll examine Newton's Third Law: for every action, there is an equal but opposite reaction.
Newton's First Law of Motion - Video
The learner views several animations to study Newton's First Law of Motion, also known as "The Law of Inertia."
Heat Transfer: Conduction, Convection, Radiation
By Laurie Jarvis, Deb Simonson
In this animated activity, learners explore three major methods of heat transfer and practice identifying each.