• Chapter 1: Science and Measurement.......................................1
  • Time and Distance........................................3
  • Investigations and Experiments......................7
  • Speed........................................................13
• Chapter 2: Mathmatical Models...............................................21
  • Using a scientific model to predict speed......23
  • Position and time........................................29
  • Acceleration...............................................33
• Chapter 3: Forces and motion.................................................43
  • Force, Mass, and acceleratiopn...................45
  • Weight,Gravity, and Friction.........................52
  • Equilibrium, Action and Reaction..................58

UNIT 2: Work and energy

• Chapter 4: Machines and Mechanical Systems.........................65
• Forces in Machine.......................................67
• The Lever....................................................71
• Designing gear Machines.............................73
• Chapter 5: Work, Energy, and Power........................................81
• Work..........................................................83
• Energy Conservation....................................87
• Energy transformations................................91

UNIT 3: Electricity and Magnetism