electricity and circuits labs
section one : electricity and circuits
section one - activity one
This is a series circuit with two lightbulbs. The current flows from the battery through the wires and lightbulbs to end up back at the battery, making a complete circuit.
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This is an example of everything plugged in and working.
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This shows how when one wire is unplugged the circuit is no longer complete and does not work.
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section one - worksheet one
problem one :
problem one :
problem two :
Type of Circuit : Series
How it Works : Current flows through battery, wires, bulbs, and back to the battery. However, this is not occurring because it is not all connected. Which bulbs will light up? Neither of the bulbs will light up due to the fact that a part of the system is unplugged resulting in a incomplete circuit. |
problem three :
problem three :
section one - activity two
section one - worksheet two
Results :
For each of these circuits the path of the current is shown by the pink line. They key to having a working circuit is having all the wires connected to the battery and lightbulbs. In addition to this the filament of the lightbulb (which is on the bottom) needs to be connected to the wire or bulb so that the current goes through the wires to the filament rather than just passing through the bulb. |
#3 #4 #5 #6 #7
section one - activity three
section two : schematic diagrams and charge flow
section two - activity two (series circuits)
*Above is an image of the working two light series circuit.
Task : Measure current and bulb brightness in each circuit. Results : We found that as more bulbs are added in a series circuit the current and bulb brightness will both decrease. This is a result of resistance, more bulbs equal more resistance. |
section two - activity two (parallel circuits)