Students view a video that shows the correct methods for starting a GTAW weld pool and adding filler. It focuses on the two problems that many students have – adding filler too soon and angling the torch so that the filler melts prematurely on the filler rod. Note: This activity is 3.6 mb.

In this learning activity you'll determine the voltages that can be topped off of a multi-resistor voltage divider that has one main power source.

Students solve practice problems on voltage, current, and impedance matching. Examples precede the problems.

In this animated activity, learners view the flip-flop and read about its outputs, the information it stores, and its storage conditions. A quiz completes the lesson.

Learners view a vector diagram for a series RC circuit and read information concerning the voltage across each component, the total voltage, and the phase angle.

Learners read about the vector diagram for a parallel RL circuit. This animated lesson presents information on current flow through each branch, total current, and phase angle.

Learners view a vector diagram for a series RL circuit. Information on the voltage across each component, the total voltage, and the phase angle is included.

In this learning activity you'll review various types of common components used in electronics and view their schematic diagram symbols.

In this learning activity you'll review the operation and schematic symbols of various types of switches and push buttons used for electronic circuits.

Choose the correct answer for the given compound proposition.

In this game you can play a rapid fire test/quiz of periodic table

A series of multiple choice questions that allows you to create a musical band of creatures as you answer questions correctly. The questions review unit 7 of calculus AB.

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