Learners examine the symbols and values that control surface roughness, waviness, and lay. A brief quiz completes the object.

In this learning activity you'll describe the operation of an AND gate by using a truth table, a waveform diagram, a Boolean Algebra equation, a switch analogy, and a written definition.

This project gives a drawing with steps to complete the activity.

In this learning activity you'll review a visual overview of depth measurement using the depth micrometer.

This project gives a drawing with steps to complete the activity.

Learners practice revising poorly written directions by applying criteria for giving directions.

Learners examine the formulas for calculating work in ft-lb units and power in ft-lb/min. units. Practice problems are included.

Learners solve word problems involving basic mechanical principles such as torque, horsepower, work, and power. Students who have problems with a particular word problem may try it again with a different set of numbers.

In this animated and interactive object, learners calculate the maximum velocity of the work stroke and the return stroke.

Grade 8 Physical Science

Work and Simple Machine review

Learn more about different occupations.

Work Motivation