Astronomy and Cosmology — A Level Physics 9702

Astronomy and Cosmology — A Level Physics 9702: 1 chapter and 77 lesson cards — AI teacher explanations, worked examples, diagrams, common mistakes and exam-style questions, aligned to the Cambridge A Level Physics 9702 syllabus.

Topics

1. 25 Astronomy and Cosmology — Introduction · Key ideas — 25.1 (a) Luminosity and radiant flux intensity · 🧑‍🏫 Teacher's explanation · 📖 Definitions · 🔍 Worked example — Easy · 🔍 Worked example — Exam-style · ⚠️ Common errors · 🧠 Quick check 1 · 🧠 Quick check 2 · 🎯 Exam question · Key ideas — 25.1 (b) Standard candles · 🧑‍🏫 Teacher's explanation · 📖 Definitions · ⚠️ Common errors · 🧠 Quick check 1 · 🧠 Quick check 2 · 🎯 Exam question · Key ideas — 25.2 (a) Wien's displacement law · 🧑‍🏫 Teacher's explanation · 📖 Definitions · 🔍 Worked example — Easy · 🔍 Worked example — Standard · 🔍 Worked example — Exam-style · ⚠️ Common errors · 🧠 Quick check 1 · 🧠 Quick check 2 · 🎯 Exam question · Key ideas — 25.2 (b) The Stefan–Boltzmann law · 🧑‍🏫 Teacher's explanation · 📖 Definitions · 🔍 Worked example — Standard · ⚠️ Common errors · 🧠 Quick check 1 · 🧠 Quick check 2 · 🎯 Exam question · Key ideas — 25.2 (c) Estimating a star's radius · 🧑‍🏫 Teacher's explanation · 📖 Definitions · 🔍 Worked example — Easy · ⚠️ Common errors · 🧠 Quick check 1 · 🧠 Quick check 2 · 🎯 Exam question · Key ideas — 25.3 (a) Redshift · 🧑‍🏫 Teacher's explanation · 📖 Definitions · 🔍 Worked example — Easy · 🔍 Worked example — Standard · 🔍 Worked example — Exam-style · ⚠️ Common errors · 🧠 Quick check 1 · 🧠 Quick check 2 · 🎯 Exam question · Key ideas — 25.3 (b) The expanding Universe · 🧑‍🏫 Teacher's explanation · 📖 Definitions · 🔍 Worked example — Easy · 🔍 Worked example — Standard · ⚠️ Common errors · 🧠 Quick check 1 · 🧠 Quick check 2 · 🎯 Exam question · Key ideas — 25.3 (c) Hubble's law and the Big Bang · 🧑‍🏫 Teacher's explanation · 📖 Definitions · 🔍 Worked example — Easy · 🔍 Worked example — Standard · ⚠️ Common errors · 🧠 Quick check 1 · 🧠 Quick check 2 · 🎯 Exam question · Worked example · 🔍 Worked example — Easy · ⚠️ Common errors · Common mistakes · Practice · Summary