Electric Charge Lesson Plan

🔖 Topics

• Electric charge
• Conductors and insulators
• Charging objects

🎯 Objectives

• Describe the two types of electric charge
• Describe the behavior of electric charges in conductors and insulators
• Describe different ways of charging and discharging objects

📋 Sequence

• 🟢 Positive and negative electric charge
• 🟢 Elementary charge $e=1.602\times 10^{-19}C$
• 🟣 Charge of Electrons in a Copper Sample
• 🟢 Ideal Conductors and Insulators
• 🟢 Charging by Rubbing
• 🟢 Charging by Contact
• 🟢 Charging by Grounding
• 🟢 Charging by Induction
• 🟣 Charging a Balloon
• 🟣 Charging a Metal Sphere by Induction

🖥️ Animations, Simulations, Activities

N/A

📝 Practice Problems

These problems come courtesy of (Saha, 2015).

1. Find the total positive charge of all the protons in 1.0 mol of water. Recall that one mole is $6.02\times 10^{23}items$, oxygen contains eight protons, and hydrogen contains one proton.
2. A metallic sphere has a charge of +4.0 nC and a charged rod has a charge of -6.0 nC. When the rod touches the sphere, $8.2\times 10^9$ electrons are transferred. What are the final charges of the sphere and the rod after the transfer?

✅ Partial Solutions

1. $9.632\times 10^{5}C$
2. Metallic Sphere = 2.688 nC, Rod = -4.688 nC

📘 Connected Resources

Saha, A. (2015). Electric Charge, Force, and Field Problems (Practice Questions). Physics and Astronomy Ancillary Materials. https://oer.galileo.usg.edu/physics-ancillary/2