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From Sunlight to Electric Current
| Content Provider | TeachEngineering: STEM curriculum for K-12 |
|---|---|
| Author | Sarabi, Rahmin Prucz, Roni |
| Copyright Year | 2013 |
| Description | Students explore the concept of current in electrical circuits, with current defined as the flow of electrons. Then photovoltaic (PV) cell properties are introduced. Students explore the concept of current in electrical circuits, with current defined as the flow of electrons. Then photovoltaic (PV) cell properties are introduced. Generally constructed of silicon, PV cells contain a large number of electrons BUT they can be thought of as "frozen" in their natural state. A source of energy is required to "free" these electrons if we wish to create current. Sunlight provides this energy. This leads to the principle of "conservation of energy." Finally, with a basic understanding of the circuits through Ohm's law, students see how energy from the sun can be used to power everyday items, including vehicles. Engaging students in the engineering design activity of building model solar cars helps students learn these concepts. |
| Language | English |
| Access Restriction | Open |
| Rights Holder | Regents of The University of Colorado Duke University |
| Subject Keyword | Physical Science Science and Technology Current Photovoltaic Cell Solar Energy Ohm's Law Conservatino of Energy Voltage |
| Content Type | Text |
| Time Required | PT1H |
| Education Level | Class VI Class VII Class VIII |
| Resource Type | Notes |
| Subject | Physics Technical |
