Unit 4 • Energy
4.2 — Work
Work is how energy gets transferred — a force acting through a distance.
🖼️ One-Page Visual Summary (Infographic)
🧭 Plot Summary
Work is not just “effort” — in physics, work happens only when a force causes an object to move. This lesson focuses on the idea that work is the mechanism for transferring energy into or out of a system.
You will connect force, distance, and direction to determine when work is done and when it is not — including common “trick” cases like carrying an object or pushing with no motion.
Why it matters:
Work is the bridge between forces and energy changes. If you can identify where work is happening, you can predict how energy will increase, decrease, or transform.
🔎 Detailed Lesson Overview
Inside: detailed explanations, graphical relationships, mathematical reasoning, and guided practice.
✅ Self-Check
- ◻ I can state the physics meaning of “work.”
- ◻ I can identify when a force does work and when it does not.
- ◻ I can explain why direction matters for work.
- ◻ I can connect work to changes in energy.
🧪 Graded Assessments
- ✍️ It’s Your Turn
- 🔬 Lab
🎓 Instructor Inside
- ▶️ YouTube Video
- 🧩 Blooket Review
- 📘 Lesson Overview