1.1.2 Simple Machines
Answer the following questions regarding simple machine systems. Each question requires proper illustration and annotation, including labeling of forces, distances,direction, and unknown values. Illustrations should consist of basic simple machinefunctional sketches rather than realistic pictorials. Be sure to document all solution steps and proper units.
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1.1.3 Gears (VEX)
In this activity you will learn about gear ratios and how they affect speed and torque within a system. You will also construct simple and compound gear systems.
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1.1.4 Pulley Drives and Sprockets
In this activity you will learn about belt and pulley systems and sprocket and chain systems. You will calculate ratios of examples of both systems in a lab environment.
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1.1.5 Gears, Pulley Drives, and Sprockets Practice Problems
Answer the following questions regarding gear, pulley, and sprocket systems. Each question requires proper illustration and annotation including labeling of forces, distances, direction, and unknown values. Illustrations should consist of basic top view assembly sketches rather than realistic pictorials. Be sure to document all solution steps and proper units. Remember: counted teeth have infinite digits, and assume all other measurements contain three (3) significant digits. All problem calculations should assume ideal conditions and no friction loss.
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1.2.2 Energy Distribution
As a class visit a local utility company to observe, ask questions, and formulate opinions to answer the following conclusion questions. You may also need to do individual research to successfully respond to the questions.
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Activity 1.2.3 Electrical Circuits (simulation) - Resources
This activity will provide you with an introduction to voltage, current, resistance, series circuits, parallel circuits, and Ohm’s Law. Your team will construct circuits using an online electricity simulator. You will use a virtual multimeter to measure properties within the circuit.
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Conclusion
1. Explain the primary difference between a series and a parallel circuit.
1. Explain the primary difference between a series and a parallel circuit.
- A parallel circuit can still allow the current to pass through the parts that are still connected. The series circuit shuts all the current off when the circuit is opened.
- In a series circuit, the current through each of the components is the same, and the voltage across the circuit is the sum of the voltages across each component. The voltage of a battery powering a series circuit would need to be the sum of voltages required by each light bulb (and any other elements) in the circuit.
- The voltage isn't as strong because it loses energy through heat.
- The voltage is evenly divided between the bulbs.
- In the series circuit, the voltage stays the same all the way around.
- In the series circuit, the voltage will stay the same.
- The voltage will lessen across each bulb because there is multiple paths
Activity 1.2.4 Circuit Calculations (Homework)
In this activity you will gain experience applying Ohm’s law and Kirchhoff’s voltage and current laws to circuits in order to gain understanding of circuit requirements and relationships between voltage,current, and resistance.
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