05-04-2012, 04:37 PM
Foundations of Physical Science
Electric Circuits.ppt (Size: 1.32 MB / Downloads: 71)
Key Questions
What “flow of understanding” provides the necessary foundation for an understanding of electricity?
What kinds of electric circuits can you build?
How does electricity behave?
Parts of our Circuits Kit
Wooden Board
Wires of various lengths
On/Off switches
Bulbs and holder
Resistors – fixed and variable
Build a simple Circuit
Place the bulb in a socket
Use one D cell
Make the bulb light!
Add a switch to conserve D cell energy
Use your finger to trace the path of electricity from one terminal of the D cell to the other terminal
Another way to light two bulbs
Keep two D cells in the circuit
Wire up the 2 light bulbs so that there are two branches or pathways for electricity to follow
What differences do you observe?
Using the Multimeter to measure Resistance
Resistance of a bulb
A measure of conductivity