AP Physics 1 - Unit 3 - Lesson 9 - Power

Ever wonder how much "oomph" it takes to move something? This video breaks down the concept of power in physics, perfect for AP Physics 1 students and anyone looking to understand how energy and work translate into real-world motion! In this lesson, we explore the definition of power, its units, and how to calculate it in various scenarios. From lifting a simple box to pulling a sled up an incline with friction, we'll walk through practical examples and problem-solving techniques. Understanding power is crucial for comprehending how quickly work is done and energy is transferred, which is fundamental to many physics applications. Chapters Introduction to Power (00:00) Power as Force Times Velocity (00:40) Units of Power: Watts (01:17) Example: Lifting a Box (01:39) Example: Pulling a Sled Up a Hill (02:58) Decomposing Forces on an Incline (04:24) Calculating Normal Force and Friction (05:10) Final Power Calculation (06:05) Key Takeaways: Power measures how fast work is done or energy is used. The unit for power is the watt (W), which is the same as joules per second (J/s). Power can be calculated by multiplying force by velocity (P = F × v). If an object moves at a constant speed, the forces acting on it are balanced. To solve physics problems, it's often helpful to draw a free-body diagram and break forces into components. Friction always opposes motion and depends on the normal force and the coefficient of friction. What you'll practice: Calculating power using different formulas (P = W/t, P = ΔE/t, P = F × v) Applying free-body diagrams to analyze forces in power problems Solving problems involving constant velocity and balanced forces Decomposing forces on inclined planes Incorporating kinetic friction into power calculations AP Physics 1 Power, Physics Work and Energy, Calculating Power, Force and Velocity Power, Watts Physics Explained, Kinetic Friction Power, Inclined Plane Physics, Constant Speed Power, Physics Problem Solving, Energy Transfer Rate, Physics Formulas, Work-Energy Theorem, Power Physics Examples, Mechanical Power, Physics Lesson #Physics #APPysics1 #Power #WorkAndEnergy #PhysicsTutorial If you want to learn more resources we offer, you can check it out at: https://www.bothellstemcoach.com/ap-p... https://www.bothellstemcoach.com/ap-c... https://www.bothellstemcoach.com/ap-p... https://www.bothellstemcoach.com/ap-p...