Grade 9 Physics

Focused lessons on physics and human society.

• Unit 1 — Physics and Human Society — Chapter PDF
• Lesson 1 — What Physics Studies
• Lesson 2 — Physics, Technology and Society

Focused lessons on physical quantities.

• Unit 2 — Physical Quantities — Chapter PDF
• Lesson 1 — SI Units and Measurement
• Lesson 2 — Scalars and Vectors
• Lesson 3 — Measuring Instruments and Errors

Focused lessons on motion in a straight line.

• Unit 3 — Motion in a Straight Line — Chapter PDF
• Lesson 1 — Distance, Displacement and Speed
• Lesson 1 — Position, Distance, Displacement and Speed
• Lesson 2 — Acceleration
• Lesson 2 — Acceleration and Uniformly Accelerated Motion
• Lesson 3 — Graphical Representation of Motion
• Lesson 3 — Motion Graphs

Focused lessons on force, work, energy and power.

• Unit 4 — Force, Work, Energy and Power — Chapter PDF
• Lesson 1 — Force and Newton's Laws of Motion
• Lesson 1 — Force and Newton's Laws
• Lesson 2 — Work, Energy, and Conservation of Mechanical Energy
• Lesson 2 — Work and Energy
• Lesson 3 — Power and Energy Transfer
• Lesson 3 — Power and Machines

Focused lessons on simple machines.

• Unit 5 — Simple Machines — Chapter PDF
• Lesson 1 — Levers and Mechanical Advantage
• Lesson 2 — Pulleys, Inclined Planes and Gears
• Lesson 2 — Pulleys, Inclined Planes, and Gears

Focused lessons on fluid statics.

• Unit 6 — Fluid Statics — Chapter PDF
• Lesson 1 — Density and Pressure
• Lesson 1 — Density and Pressure in Solids
• Lesson 2 — Pressure in Liquids and Atmosphere
• Lesson 3 — Upthrust and Archimedes' Principle
• Lesson 3 — Upthrust, Archimedes' Principle, and Flotation

Focused lessons on temperature and heat.

• Unit 7 — Temperature and Heat — Chapter PDF
• Lesson 1 — Temperature and Thermometers
• Lesson 1 — Temperature and Thermometry
• Lesson 2 — Heat Transfer
• Lesson 2 — Mechanisms of Heat Transfer
• Lesson 3 — Thermal Expansion and Heat Capacity