In this animated activity, learners examine the operation of normally open and normally closed valves used in hydraulics. A brief quiz completes the learning object.

In this animated object, learners examine the signals produced at the N.O. (normally open) and N.C. (normally closed) outputs of sourcing and sinking four-wire sensors. A brief quiz completes the activity.

Learners examine the factors that contribute to the delays in the response time throughout a closed-loop system.

In this animated object, learners examine the operation of a closed-loop system that maintains the speed of a conveyer belt as heavy boxes are placed or removed.

Learners study an animated block diagram that describes the function of each element in a closed-loop system used in industrial automation.

Learners watch a short video showing the correct procedure for police officers to follow when making a non-approach vehicle contact.

Learners watch a short video showing the correct procedure for police officers to follow when making contact with a high-risk vehicle.

Learners will identify ladder logic diagrams and the logic functions they perform.

The inverting amplifier configuration is presented. The closed loop voltage gain and the closed loop bandwidth formulas are explained, along with the concept of negative feedback.

Learners watch a short video demonstrating the correct procedure for police officers to follow when approaching a motorist after stopping a vehicle.

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

In this interactive and animated object, learners examine open and closed head injuries and the common causes and symptoms related to them.

Learners observe how an optical pyrometer is used to take temperature measurements without making physical contact with the object being measured.

In this animated object, learners examine a closed-loop feedback system that uses digital circuits to control the position of a gear rack.

In this scenario, learners take the role of a delivery driver who must find a new travel route after the Interstate is closed to trucks. “Drivers” listen to traffic reports and write directions for a new route. This activity has audio content.

In this accounting learning object, students follow the steps involved in the closing process. Temporary accounts contain ending balances for a specified period and must be closed.

In this learning activity you'll explore normal distribution and enter values for the mean and the standard deviation of normally distributed data and observe the resulting changes in the shape of the normal curve.

Learners examine how a ladder logic circuit becomes latched when a normally open pushbutton is momentarily pressed.

In this animated object, learners examine an analog closed-loop feedback system that uses potentiometers to control the position of a gear rack.

Students are introduced to the non-inverting amplifier configuration. The formulas for closed loop gain and bandwidth are shown, and an example is given.