In this animated activity, students read about the two general types of variable resistors: potentiometers and rheostats. A brief quiz completes the learning object.

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

Learners watch a video of a walk around inspection of a rough terrain lift truck from front to rear. Note: This object contains video clips. High-speed Internet is highly recommended.

Learners examine the various classifications of airspace and the requirements to pilot an aircraft there. A quiz completes the activity. This object has sound.

In this learning activity you'll explore how units in the metric system are related to each other and practice locating measurements on a metric line.

In this animated activity, learners follow a step-by-step approach for connecting a digital multimeter to measure resistance. A brief quiz completes the activity.

In this learning activity you'll read the steps for proper meter placement for the measurement of resistance, voltage, and current.

Learners follow procedures for measuring resistance using an analog ohmmeter. They examine the use of the Function Switch and the Range Switch and practice reading a non-linear scale. A brief quiz completes the activity.

Students follow the procedure to measure voltage with an analog voltmeter. They examine the use of the Function Switch and the Range Switch. A brief quiz completes the activity.