In this animated object, learners examine how the way in which a rheostat is connected in series with other resistors causes current and voltage to change as the resistance is varied.

Learners read a detailed description of the VAT-40 tester and practice using it in an interactive exercise.

In this animated object, learners examine what happens to lead and cycle times when the batch size is reduced.

In this interactive and animated object, learners examine the SUN VAT-40 battery starting and charging system tester. This learning object demonstrates the use of the tester in diagnosing conventional 12-volt automotive charging systems. It contains audio.

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.

Learners examine the function of the analog wattmeter to measure true power, how it is connected in a circuit, and how the internal components develop a measurement. A brief quiz completes the activity.

Learners view animations showing how a time-of-flight flowmeter uses ultrasonic sound waves to measure the flow of a liquid.

In this animated learning object, learners examine how an ultrasonic flowmeter measures the flow of liquids through a pipe using ultrasonic sound waves. A short quiz completes the activity.

The purpose of this learning object is to introduce the learner to the different processes of science.