UNIT OVERVIEW

This revision unit covers all the major topics from Terms 1 and 2. You will practise the skills and concepts you need for the mid-year examination.

By the end of this unit, you will be able to:

• Resolve vectors into components and calculate resultants in two dimensions
• Apply Newton's Laws to solve problems involving friction, tension, and inclined planes
• Calculate gravitational forces and acceleration due to gravity at various heights
• Explain molecular geometry using VSEPR theory and predict polarity
• Identify intermolecular forces and relate them to physical properties
• Apply Snell's Law and calculate critical angles for total internal reflection
• Use Huygens' principle to explain diffraction patterns
• Solve problems using gas laws (Boyle's, Charles's, Gay-Lussac's, Combined, and Ideal Gas Law)
• Perform stoichiometric calculations including limiting reagents and percentage yield
• Analyse energy changes in reactions and interpret energy diagrams

Why this matters: