In this learning activity you'll explore the operation of a full-wave bridge rectifier circuit.

Learners read a description of the knob controls, pushbuttons and output terminals on the Wavetek Model 25 signal generator.

In this animated and interactive object, learners calculate the area and centroid of a semicircle.

In this interactive object, learners test their knowledge of 14 geometric tolerance control symbols.

In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.

Learners read about the concepts of true power, reactive power, and apparent power, and are introduced to the power factor formula. A short quiz completes the activity.

Students read about the concept of true power and view examples of how it is dissipated as heat is provided.

Learners read an explanation of the concept of apparent power in a power distribution system involving motors, generators, and transformers. A quiz completes this interactive lesson.

Students read an explanation of reactive power in a power distribution system involving motors, generators and transformers. A brief quiz completes the activity.

Tic-Tac-Toe Game of Ergonomic Principles (Ref: Ergonomics: The Study of Work OSHA 3125)

Review for the physical science test on Newton's laws.

Grade 8 Physical Science