In this learning object the student will learn how to measure a stain and calculate angles of impact. Determining the angle of impact for bloodstains takes advantage of the trigonometric functions (Sine function).

A mathematical relationship exists between the width and length of an elliptical bloodstain which allows for the calculation of the angle of the impact for the original spherical drop of blood.

Given well formed stains we can accurately measure the width and length by simply dividing the stain along it’s major and minor axis. The opposite halves would be generally equal to each other which aids in establishing the impact angle.

In this learning activity you'll practice reading and interpreting a paychecks and paycheck stub.

In this interactive object, learners answer 25 questions regarding part or assembly drawings. The basic areas of blueprint reading are covered.

Learners examine the use of the tolerances displayed in a title block by calculating the minimum and maximum allowable size of a fabricated part. In a brief quiz, students determine whether a part is usable or should be scrapped.

Students read how to determine and calculate the dry density for a given sample of soil or aggregate based on the mass-volume relationship.

In this animated activity, learners view the seven steps that are used to calculate voltage and current values throughout a common-emitter transistor amplifier.

In this learning activity you'll calculate the determinant of a 2x2 matrix.

Students read how to determine and calculate the saturated density for a given sample of soil or aggregate, based on the mass-volume relationship. Practice problems complete the activity.

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

Students read how to calculate the size of a hydraulic cylinder that is required for a particular application. Mathematical formulas are provided.

Introduces two methods of determining bend allowance; one is simple and is an approximate, the other is more precise. Interactive part has learner calculate bend allowance and blank size.

In this learning activity you'll identify and calculate the area under the normal curve specified by given z-scores.

In this interactive object, learners are given the RPM, the pulley diameter, and the force, and proceed to calculate belt velocity and horsepower.

In this interactive learning object, students calculate a resultant of multiple forces acting in a concurrent, coplanar condition.

In this learning activity you'll identify the various parts of a bar graph, read and interpret its data, and calculate the data to solve various application problems.

Learners practice reading prints of a hub. They identify information located on the print and calculate missing dimensions.

In this learning activity you'll calculate the numeric value of an area when given the z scores.

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

The learner will describe the non-inverting op-amp configuration and calculate the circuit gain.