In this learning activity you'll review what a variable is, how to use variables in JavaScript, and how the computer works with variables.

In this animated activity, students read about the two general types of variable resistors: potentiometers and rheostats. They then answer six multiple-choice questions.

In this learning activity you'll define what a variable is, how they're used in the C# programming language, and how the computer works with variables under the hood.

Understand the pseudocode structure of variable declarations

Learners examine the circuitry in a DC variable speed drive that prevents the motor from running at 0 rpm or at maximum speed under certain conditions.

Students analyze the eight single variable Boolean theorems and their expressions.

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

Understand the pseudocode structure of variable declarations, a vital component of programming computer and industrial applications.

In this animated and interactive object, learners examine how a variable voltage is obtained from a variable resistor that is wired as a potentiometer across a fixed DC power supply.

The learner will understand and be able to apply the common welding variables of the GMAW process.

Learners view colorful animations showing the operation of a VR stepper motor.

Roman numerals are used to identify the charges on metal cations having multiple oxidation states. Five examples are provided for practice.

Learners read definitions of discrete, continuous, attribute and variable data and view examples of checklist, location and item check sheets.

Learners examine the periodic table to identify metallic elements that have either fixed or variable oxidation states.

In this animated lesson, learners examine the rectifier circuitry in a DC variable speed drive that supplies the voltages to the field coil and armature.

Learners examine the circuitry in a DC variable speed drive that protects the rectifier diodes and motor windings from being damaged due to excessive current.

Learners examine the speed control circuits in a DC variable speed drive that cause the RPM of a motor to vary. This activity has audio content.

In this animated activity, learners examine the circuitry in a DC variable speed drive that keeps the motor running at a constant speed as the load varies.

In this learning activity you'll simplify square roots involving the product of a numeric and variable term.

Learners study how a circuit converts the AC output of a linear voltage differential transformer (LVDT) into variable DC voltage. It is recommended that learners view the learning object IAU7807, “The LVDT: A Linear Voltage Differential Transformer in Action” before going through this object.