Energy

This chapter explores work, energy, and power in physical systems.

Key Concepts:

  • Work and kinetic energy

  • Potential energy (gravitational, elastic)

  • Conservation of energy

  • Power

Sample Question:

A 10 kg object is lifted 2 m. What is the increase in gravitational potential energy?

\[\Delta U = mgh = 10 \times 9.8 \times 2 = 196\ \text{J}\]