Chapter 4: Energy Sec 4.1: The Nature of Energy Sec 4.2: Conservation of Energy 9 th Grade Physical Science.
TEK 4A: Calculate speed, momentum, acceleration, work and power in systems such as in the human body, moving toys and machines. TAKS Objective 5.
UNIT 2: Physics Chapter 3: Describing Motion (pages 68-95) I. Describing Motion A. Motion 1. Motion occurs when an object changes position.
