Physics › Section E · Work, energy, and power › Topic E.2
Kinetic energy and the work-energy theorem
A moving object carries energy because it is moving, and the net work done on it decides how much. The work-energy theorem turns forces and distances straight into speeds, often without needing the acceleration or the time.
In this topic
- Where does the work go?
- Kinetic energy
- Speed counts twice
- Where the theorem comes from
- The work-energy theorem
- Worked example: pushing a cart
- Worked example: a puck coming to rest
- Stopping distance and speed
- Energy or Newton's laws?
- Common mistakes to avoid
- Key takeaways
This topic is part of Wuanberri Pro. Checking your access…