In this learning activity you'll explore how a fuse de-energizes a parallel circuit when too many lamps are connected to a power outlet.

Students read the vocabulary associated with frequency response as it relates to an amplifier.

This animated lesson shows the operation of timer-on and timer-off delay relays used in ladder circuit operate.

Students study the concept that the voltage drop across a series circuit resistor is proportional to its resistance. They then complete a brief quiz.

In this animated object, learners examine the relationship between pressure and temperature in an air conditioning system.

In this animated and interactive object, learners identify the valves and chambers of the heart.

In this animated lesson, students view the operation of an electromechanical relay. A brief quiz concludes the activity.

In this animated activity, students examine the difference between opens and shorts in an electrical circuit. A brief quiz completes the object.

Learners examine the changes in current and voltage values in a parallel circuit when open and short conditions develop. Ohm's Law calculations are shown, and a brief quiz completes the activity.