Compare computed values of circuits to the measured value of circuits.
DefinitionComparison should include
- using the same value components that are physically installed in the circuit
- retaining at least three significant figures (i.e., decimal places) on all measurements
- reconciling differences between computed and measured values (often attributable to rounding errors).
- Why might computed values differ from measured values?
Related Standards of Learning
The student will plan and conduct investigations using experimental design and product design processes. Key concepts include
- the components of a system are defined;
- instruments are selected and used to extend observations and measurements;
- information is recorded and presented in an organized format;
- the limitations of the experimental apparatus and design are recognized;
- the limitations of measured quantities are recognized through the appropriate use of significant figures or error ranges;
- models and simulations are used to visualize and explain phenomena, to make predictions from hypotheses, and to interpret data; and
- appropriate technology including computers, graphing calculators, and probeware is used for gathering and analyzing data and communicating results.
The student will investigate and understand how to diagram, construct, and analyze basic electrical circuits and explain the function of various circuit components. Key concepts include
- Ohm’s law;
- series, parallel, and combined circuits;
- electrical power; and
- alternating and direct currents.