#AP Physics 1: Electricity - Your Last-Minute Guide ⚡

Hey, future physicist! It's crunch time, and we're here to make sure you're feeling confident about electricity for the AP Physics 1 exam. Remember, as of 2021, College Board only tests Units 1-7, but this review is still super helpful for understanding the bigger picture. Let's dive in!

#Introduction to Electricity

Electricity is the backbone of our modern world, powering everything from your phone to the lights in your room. We'll be looking at how the concepts from Unit 8 apply to electric circuits. This topic is worth about 6-8% of your exam, so let's make it count!

#Image courtesy of Unsplash.

#Big Ideas & Key Concepts

#Big Ideas

• Big Idea #1: Systems - Objects and systems have properties like mass and charge. Systems can have internal structures.
• Big Idea #5: Conservation - Changes from interactions are governed by conservation laws.

#Key Concepts 🔑

• Resistivity ($\rho$): How much a material resists the flow of charge.
• Resistance (R): The opposition to current flow in a circuit element.
• Voltage (V): The electrical potential difference that drives current.
• Current (I): The rate of flow of electric charge.
• Charge (q): A fundamental property of matter that can be positive or negative.
• Electrical Energy (W): Energy associated with electric fields and charges.
• Electrical Power (P): The rate at which electrical energy is used or generated.
• Series Circuits: Components connected end-to-end, same current.
• Parallel Circuits: Components connected side-by-side, same voltag...