AQA • Physics

This is the optional topic: 3.8 Astrophysics for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

This is the topic: 3.8 - Nuclear Physics for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

This is the topic: 3.7 Fields and their Consequences for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

This is the topic: 3.6 - Further Mechanics and Thermal Physics for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

This is the topic: 3.5 Electricity for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

This is the topic: 3.4 Mechanics and Materials for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

This is the topic: 3.3 Waves for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

This is the topic:3.2 Particles and Radiation for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

This is the topic: 3.1 Measurements and Their Errors for the AQA A-Level (and AS-Level) Physics course (from 2017 onwards). I got 4 A*s in my A-Levels (Physics, Maths, Further Maths, Computer Science), so they are very detailed and cover all of the specification for this topic.

Stars are classified based on their spectral characteristics and temperature. The main classification system is the Hertzsprung-Russell (H-R) diagram, which categorizes stars into several spectral types: O-Type: Very hot (over 30,000 K), blue stars. They are massive and have strong ionized helium lines. B-Type: Hot (10,000-30,000 K), blue to blue-white stars. They show neutral helium lines and strong hydrogen lines. A-Type: White to blue-white stars (7,500-10,000 K). They have strong hydrog...