Snap Circuits 10_10

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Clemson University *

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1181

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Physics

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Dec 6, 2023

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PHSC 1181– Introduction to Physics, Astronomy & Earth Sciences for Elementary Education Majors Lab Snap Circuits Lab Activity #1: Simple Circuit with a Lightbulb 1. What are the elements of this circuit? Build it! Batteries and snap circuits. 2. Explain how and why this circuit works. The circuits connect the lights to the battery, so the energy flows through. 3. Try adding the switch. How and why does that change the circuit? The switch allows for the light to be turned on and off. It is a blocker between the battery and the light and allows the energy to be blocked. Activity #2: Types of Circuits Key Concepts: ● Open: the circuit is not complete (e.g. due to switch), current cannot flow ● Closed: the circuit is complete and current can flow ● Series: current flows through each circuit component in sequence ● Parallel: current flows through both circuit component

Experiment #1 Question: Does the arrangement of components within a circuit cause it to behave differently? Yes, the light that comes first that connects to the second light, is brighter than the second light. Hypotheses? If the energy is the same, the more outlets you have, the less the energy is going to be as it is transferred through the circuit. Procedure: 1. Create circuit #1 with lightbulbs L1 and L2 in series. 2. Create circuit #2 with lightbulbs L1 and L2 in parallel. What do you observe? When we have two snap circuits and L1 is placed on top, both lights are brighter than the series circuit. Either way both lights become lit. 3. Remove one light bulb from the series circuit, what do you observe? The second light bulb turns off because the first light bulb was the connector and the second light bulb is no longer receiving energy through the circuit.

4. Remove one light bulb from the parallel circuit, what do you observe? The second light bulb remains lit despite removal of the first light bulb because the circuit is still complete since it has two snap circuits. Challenge Objective: NASA has asked for your help in designing a new type of ultra-light flight based on the concept of a UFO. The system will be powered from the ground using a motor (M1) and then launched into the atmosphere. Your job is to design a circuit that will produce the most power (send the UFO the highest). The team with the highest flight wins! Activity #4: Transformations of Energy Observations: We have seen that energy can be transformed from electricity into light (lightbulb), motion (fan), heat (resistor), and chemical energy (battery). Give other examples of energy transformations. ● Photosynthesis: energy → to food ● Solar panels: Light→ electric energy ● Wind turbines: Kinetic energy (wind) → electrical energy Assignment: Each group will be assigned two different circuits from the Snap Circuits project list below. Build the circuit and present to your group how the circuit works to transform energy.

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Project 15 musical doorbell: Parts used: 2-snap wire, 5-snap wire, Battery Holder, 100k Omega Resistor, Slide Switch, Press Switch, Music Integrated Circuit, Speaker, Red-light Emitting Diode, 3-snap wires, 1-snap wires, 6-snap wires Project 5 Lamp and Fan Series

Parts used: 2-snap wire, Battery Holder, Slide Switch, 2.5 V Lamp, Motor Fan

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