Using the principle of Pascal's Law, the learner will interpret the gauge readings in a hydraulic system to determine when the system is operating properly under various load conditions and when there is a defect.

As a welder, you'll need to know how to convert between standard and metric measurements. Try this activity to practice converting between these two measurements. A conversion chart is provided to help you complete this work.

The student is asked to identify measurements on a dial caliper.

In this animated activity, learners view the following physics concepts in action: force, friction, horsepower, work, power, inefficiency, resistance, inertia, and energy.

In this learning activity you'll follow 11 steps to take measurements using a Vernier caliper.

Learners view animations showing methods of measuring the pH level of a solution using litmus paper and electronic instruments.

Learners examine the differences and similarities between hydraulic and pneumatic systems.

In this animated lesson, learners follow the steps required to read the phase shift difference in degrees between two AC waveforms.

Learners read a description of how an oscilloscope is used to measure the frequency of a sine wave.

Learners follow step-by-step instructions for using an oscilloscope to measure DC voltages.

In this animated learning object, students view the operation of an oscilloscope that is used to measure AC voltages. A brief quiz completes the activity.

Learners examine dew point and the two types of humidity values, absolute and relative, along with the types of instruments used to measure them. The activity includes a video clip and a quiz.

Learners read how inches of water column is used as a unit of pressure measurement. Practical applications and a conversion formula to psi are included.

In this interaction the student is presented with 17 questions testing his/her ability to read an inch O.D. micrometer.

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 learning activity you'll review how to read a metric micrometer and use your knowledge to answer 12 questions.

In this animated lesson, students view how an oscilloscope and a DC voltmeter measure the voltage of a half-wave rectifier.

This is an animated troubleshooting exercise that takes voltage measurements to determine the fault of three different series circuits. There are six review questions that enable the learner to determine the effectiveness of the troubleshooting presentation.

Learners read a step-by-step approach on how to connect an ohmmeter when making measurements in this interactive lesson.

In this learning activity you'll explore how units in the metric system are related to each other and practice locating measurements on a metric line.