JHS SCIENCE 8
ELECTRICITY & ELECTRIC CIRCUITS
VIRTUAL LABORATORY
Name: _____________________________________
Grade and Section: ___________________________
Score: ____________ LG: _____
Date: ______________________
General Instruction: Read and follow the instructions on how to conduct the virtual laboratory.
Answer the questions given. Make sure to follow the instruction on how to save your
document. Upload the file in the Assessment link provided.
Simulation Link:
https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/latest/circuit-construction-kitdc_en.html
Advanced Circuits
A. Measuring Voltage
Click the "Show Values" button and add a Voltmeter to the board. Set up a circuit that
has one battery and one bulb.
1. What happens when you switch the black and the red wires?
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2. What happens when the voltmeter wires are on the same side of the battery?
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3. Place another battery in the circuit next to the first battery. What happens to the
value of the voltage?
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B. Using Schematics
Electricians use schematics to diagram circuits connected to houses, large buildings, or
even small electronics. Click on the "Schematic button" to see what each symbol
means.
Task: Upload in the link a screenshot/picture of schematic symbols the following:
1. Resistor
2. Battery/Cell
3. Switch
C. Set up the following circuit and test the voltage by placing the voltmeter in the locations
shown. List the voltage for each of the locations.
Voltage = __________
Voltage = __________
Voltage = __________
D. Series Circuits
Set up the circuit
schematic.
shown
Voltage = __________
on
the
Use the voltmeter to determine how
much voltage is going through each bulb.
Ensure the voltmeter's wires are
positioned on either side of a single bulb,
as shown by the arrows on the diagram.
1. How much voltage is going through a single bulb? ___________________________
2. Remove a bulb. How much voltage going through a single bulb? _______________
3. The battery is 9V. Based on your observations, how many volts would pass through
a bulb if there were nine bulbs on this circuit? ______________________________
4. Place a switch directly after the battery. What happens when you turn the switch on
or off? ____________________________________________________________
E. Parallel Circuits
Set up the circuit as shown by the
schematic.
1. How much voltage is going
through each of the bulbs in
the circuit? _______________
2. Add a third bulb. How much
voltage is going through each
of the bulbs now? __________
3. Based on your observations, is it better to wire a house using parallel circuits
or series circuits? Explain.
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4. The diagram below shows two lights
(parallel circuit) with two separate switches.
Set this up on the simulator.
What will happen if you turn switch A on?
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