Name:_ Date: Results: (90 pts max) PHYS 1110L Conceptual Physics Lab Lab 5 Simulation: Series Circuits & Parallel Circuits Circuit Construction Kit (DC Only) Through a web browser, navigate https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/. Click "Run now" to start the simulation. Problem . What are the electric potential and electric current relationships in series circuits? Objective Today, you will use the Circuit Construction Kit PhET lab to qualitatively explore series and parallel circuits. Part 1: Drawing Circuits Draw a simple diagram for a series and parallel circuit below using your lab notes. Series Circuit Parallel Circuit 1 of ?Lab 8 Series Circuits & Parallel Circuits Part 2: Beginning Observations Draw a simple diagram for a series and parallel circuit below using your lab notes. 1) Open the Circuit Construction Kit (DC Only) PhET simulation. What can you change about the simulation? 2) Build a simple circuit with a battery, wires, light bulb and voltage source. Draw it below. PhET Diagram Circuit Diagram (draw what you see on the screen) (use symbols we have learned in class) 3) What are the main differences between what you see on the screen and what you drew in your circuit diagram? 4) What flows through the wires when there is a closed circuit? What on the screen represents these? 2 of cLab 8 Series Circuits & Parallel Circuits Part 3: Series Circuit Construct a simple series circuit with the following amounts of light bulbs using the PhET simulation. Remember in a series circuit, there is only on path for electricity to flow. Keep the battery source the same. Draw the proper circuit diagram in your table and rank the relative brightness in your table Relative Brightness of bulbs # Light Bulbs Circuit Diagram (use words like brightest, least bright, etc.) 2 w think this is the case? What can you conclude about what happens to the brightness of the bulbs as you add more bulbs in series? Why do you Part 4: Parallel Circuit Construct two parallel circuits one with 2 light bulbs in parallel and one with 3 light bulbs in parallel and rank the relative brightness of the bulbs. Remember, in a parallel circuit there are multiple pathways for electricity to flow. Keep your battery source the same.Lab 8 Series Circuits & Parallel Circuits Relative Brightness of Bulbs # Light Bulbs Circuit Diagram use words like brightest, least bright, etc.) w What can you conclude about what happens to the brightness of the bulbs as you add more bulbs in parallel? Why do you think this is the case? Part 5: Conclusion O's 1) How does the parallel circuit compare to the series circuit? 2) What happens when you break a parallel circuit (try it out in the SIM if you need to!)? How would this property be useful when designing circuits? 3) What are the advantages and disadvantages of series and parallel circuits? 1 of CLab 8 Series Circuits & Parallel Circuits Making Connections 1. Small computer speakers often have power supplies that give 12V DC at 200 mA. How much charge flows through the circuit in 1 hour and how much energy is used to deliver this charge? 2 . Our speakers use 200 mA of current of maximum volume. The voltage is 12 V. The current is used to produce a magnet which is used to move the speaker cone. Find the resistance of the electromagnet. 3. Electrons are the that through 4. Historically thought charges move. 5 . current is the flow of charges. 6. Flows from terminal and into terminal. 7. current flows the way . 8. signals travel near of but travel much 9. Each new electron one ahead of it, so current is actually like 10. Device that offers to of charges. 11. wire has very resistance