Learners read an explanation of how to connect two 7485 ICs to compare binary numbers by creating an 8-bit comparator. Diagrams and charts are presented.
Learners study animation showing the operation of cumulative and differential DC compound motors. A short quiz completes the activity.
In this animated object, learners examine the operation of a capacitive proximity sensor. A brief quiz completes the activity.
In this learning activity you'll observe the growth of gram negative organisms and determine if they're lactose positive or negative.
In this learning activity you'll explore the operation of a full-wave bridge rectifier circuit.
In this animated and interactive object, learners examine how changes in applied voltage affect the current and voltages in a zener diode voltage regulation circuit. A short assessment completes the activity.
Learners study the fundamental operation of a triac, particularly how it is turned on and off. A brief quiz completes the activity.
Learners examine the function of each part of a microscope and follow step-by-step instructions on how to focus on a specimen. They also review the proper use and care of a microscope and test their knowledge in two drag-and-drop exercises.
In this learning activity you'll explore the physical construction and operation of single-mode and multi-mode fiber-optic cables used in networking.
Students review the Current Divider Rule (CDR) and work practice problems.
Learners review guidelines for the proper use of a dial caliper. Illustrations appear throughout the learning object.
In this animated object, learners view the "T" and "P" waves and the "QRS complex." A brief quiz completes the activity.
In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.
This learning object shows the symbols used to represent the type of pulse required at the clock input to activate flip-flops.
In this animated object, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations. A quiz completes the activity.
In this animated object, learners examine how aeration develops in a hydraulic pump. A brief quiz completes the activity.
Learners apply the principles associated with Boyle’s Law. A brief quiz completes the activity.
After a brief review, the student solves five practical shop problems using right angle trigonometry.
In this interactive object, learners read a case study and consider the signs and symptoms of schizophrenia and the appropriate nursing interventions.
Learners review common terms associated with cardiovascular anatomy and physiology by working a crossword puzzle. Immediate feedback is provided after each term.
Learners use peripheral vascular assessment data to examine characteristics of these four conditions: peripheral arterial disease, deep vein thrombosis, chronic venous insufficiency, and acute arterial occlusion. A matching exercise completes the learning object.
In this animated object, learners examine the fundamental operation of a noninverting operational amplifier. A brief quiz completes the activity.
In this animated learning object, students view the operation of an oscilloscope that is used to measure AC voltages. A brief quiz completes the activity.
In this animated and interactive object, learners examine ventilation, external and internal respiration, and gas transport.
In this animated activity, learners examine how an electronic converter changes digital signals to analog signals. Sections of a synthesizer are identified, and the operation of a D/A converter is demonstrated.