In this interactive object, students answer 10 questions covering Ohm's Law and Power Law.

The learner will use the deceptively simple sine bar to measure angles to minutes or even half minutes.

In this interactive object, students calculate capacitive reactance, impedance, current, and power in parallel RC circuits.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

Students read about the ideal versions of the four common filters (low-pass, high-pass, bandpass, and notch), and view graphical representations of the filters' frequency characteristics.

The schematic symbols of logic gates used in digital circuits are shown.

The explanation and use of timing diagrams used in digital electronics to graphically show the operation of various circuits are given.

This learning object shows the symbols used to represent the type of pulse required at the clock input to activate flip-flops.

Students read information about basic logic gates including the gates' names, symbols, Boolean expressions, pronunciations, and truth tables. They then complete a matching exercise.

Use your knowledge of Virginia's geography to help you play Slithery Snake!

Use the arrow keys to direct the snake towards the type of logical fallacy in the example sentences.

Learn about the regions of the U.S.

Codes & Signals