Physics 1

Unit 4: Energy

Kinetic Energy • Work • Potential Energy • Conservation of Energy

Lessons in this Unit

4.1 — Kinetic Energy4.2 — Work4.3 — Potential Energy4.4 — Conservation of Energy

Unit 4 Snapshot

In Unit 4, you learn to describe how energy is stored, transferred, and transformed. You’ll connect motion to kinetic energy, use the idea of work to explain energy transfer, compare different forms of potential energy, and apply conservation of energy to predict what systems will do.

  • Calculate kinetic energy and explain what variables affect it.
  • Use work to connect forces and displacement to energy transfer.
  • Describe and calculate potential energy in common situations.
  • Apply conservation of energy to multi-step motion scenarios.

Complete Lessons 4.1–4.4 in order, then move into review and practice to prepare for the summative challenge.

Review & Practice

📚 Unit Review

Unit 4 Review — Concepts & Key Relationships

📝 Rework / Regrade

Unit 4 Rework — Improve Your Score

✅ ACT Practice

ACT #1 — Energy Basics & WorkACT #2 — Potential Energy & SystemsACT #3 — Conservation of Energy

Summative Assessment

When you have completed the lessons, review, rework, if needed, and ACT practice, you are ready for the Unit 4 summative challenge.

Open Unit 4 Summative Challenge — Roller Coaster