In this animated object, learners examine how to find the center of gravity of a steel rod and of a two-dimensional shape.

In this animated and interactive object, learners calculate the area and centroid of a quadrant.

In this animated and interactive object, learners calculate the area and centroid of a triangle.

In this animated and interactive object, learners calculate the area and centroid of a rectangle.

In this animated and interactive object, learners calculate the area and centroid of a semicircle.

In this animated and interactive object, learners calculate the area and centroid of a circle.

In this interactive object, learners calculate a centroid of a composite area by first creating a chart. A short quiz completes the activity.

In this learning activity you'll review the hazardous materials safety document which display an example of a SDS or MSDS (Material Safety Data Sheet).

The learner sees photos of the spark patterns of various materials and their related properties.

This learning object describes the equipment and supplies needed to document bloodstain patterns.

In this document you'll review photos of different types of drilling tools.

In this animated object, students view an explanation of how current, voltage, and the magnetic field strength of a series RL circuit change during five time constants. A brief quiz completes the activity.

In this animated learning object, students examine current, voltage, and the magnetic field strength of a series RL circuit while it is de-energizing during five time constants. A quiz completes the activity.

Students will learn how to document bloodstains using roadmapping equipment materials

In this animated object, learners examine the factors that determine how well a capacitive proximity sensor can detect an object. Those factors include size, position, and the materials from which the target is made. A brief quiz completes the activity.

Learners follow steps to size an interior grease interceptor in a plumbing system that is collecting deleterious materials from a commercial kitchen sink. A brief quiz completes the activity.

Learners read about the benefits of storing raw materials within 3 feet of the work area where they will be used.

In this animated, audio and graphic activity illustration, learners will view design criteria for properly storing property and evidence.

Learners will be able to identify areas within the property room including adjoining work areas, work flow, temporary storage, long-term storage, high profile items, bulk or oversize items, biohazards, hazardous materials, cold storage, administrative area, and release areas.

In this colorful, interactive object, learners examine how materials on the nanoscale compare with those on the macroscale. The focus is on the difference between macroscale and nanoscale gold in both color and melting point.

Learners follow step-by-step instructions for creating a current-state map to identify how materials and information flow.