Curated OER
Pulse-Width Modulation Signal Generator
In this electrical worksheet, students answer a series of 6 open-ended questions about pulse-width signal generators. This worksheet is printable and the answers are revealed online.
Curated OER
AC Filtering With Capacitors
Pupils investigate the properties of capacitors and discover that capacitors block DC and filter AC. They discover the function of capacitors. Students differentiate between AC and DC power. They explore the role of resistors.
Curated OER
Ohm's Law, Watt's Law and Solving Formulas.
Students, in groups, connect a 10 ohm resistor across their 1.5 volt battery, and take voltage readings every 5 minutes.
Curated OER
Comparing Different Energy Resources
Students examine the advantages and disadvantages of the different sources of energy. In this energy lesson students complete an experiment and worksheet.
Curated OER
Design Project: Intercom System
In this electrical instructional activity students design an intercom circuit and answer 2 open-ended questions about the volume control and microphone of the intercom. This instructional activity can be printed and the answers to the...
Concord Consortium
Concord Consortium: Dc Circuits: Series Parallel Resistances (Sparks 3)
Answer questions regarding voltage drops across resistors and currents through them in such circuits. Practice calculating the effective resistances of a set of resistances in series and parallel.