Learners examine the formulas for calculating work in ft-lb units and power in ft-lb/min. units.
The Duty Cycle of a Multivibrator
By Terry Bartelt
In this interactive and animated object, learners examine the duty cycle of a squarewave produced by a multivibrator using a 555 IC (integrated circuit). A brief quiz completes the activity.
Testing a Hydraulic Pump
By Terry Bartelt, Stephen Schneider
Learners follow an animated test procedure to determine if the parts of a hydraulic pump are worn.
Surface Texture Symbols
By Glenn Sokolowski
Learners examine the symbols and values that control surface roughness, waviness, and lay. A brief quiz completes the object.
Hydraulic System Pressure
In this animated activity, learners observe how pressure values throughout a hydraulic system are developed based on pump pressure and the size of the load.
AC Current Flow
In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.
Learners read about the concepts of true power, reactive power, and apparent power, and are introduced to the power factor formula. A short quiz completes the activity.
Students read about the concept of true power and view examples of how it is dissipated as heat is provided.
Learners read an explanation of the concept of apparent power in a power distribution system involving motors, generators, and transformers. A quiz completes this interactive lesson.
Students read an explanation of reactive power in a power distribution system involving motors, generators and transformers. A brief quiz completes the activity.
Work and Power Formulas
Grade 8 Physical Science
Review for the physical science test on Newton's laws.
Earth Science Key Terms Hangmoon
This Hangmoon game goes over some Science and Physics terms.
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