AQA • Physics

Gravitational and electric fields are both examples of force fields that act over a distance. Gravitational fields are regions around a mass where another mass experiences an attractive force. The force is proportional to the product of the masses and inversely proportional to the square of the distance between them. Gravitational fields are always attractive. Electric fields exist around charged particles. A positive charge creates a field that repels other positive charges and attracts n...

Capacitance is the ability of a system to store electrical charge when a voltage is applied. It’s measured in farads (F), which indicate how much charge can be stored per volt of potential difference. A capacitor is a device designed to store electrical energy, consisting of two metal plates separated by an insulating material called a dielectric. Capacitors are widely used in electronic circuits for energy storage, filtering, and signal processing. The energy stored in a capacitor is held in ...

In AQA A-Level Physics, telescopes are covered under the Astrophysics unit, focusing on refracting and reflecting telescopes. Refracting telescopes use lenses to collect and focus light but suffer from chromatic aberration and lens size limitations. Reflecting telescopes use mirrors, avoiding chromatic aberration and allowing larger apertures. Key concepts include focal length, magnification, resolving power, and diffraction limits. Radio telescopes also feature, gathering radio waves rather tha...

In depth notes on nuclear physics including examples and diagrams.

In depth notes on astrophysics including photos, diagrams and examples.

In depth notes on particles and radioactivity including diagrams, photos and examples.

In depth notes on electricity including diagrams, photos and examples

In depth notes on thermal physics including diagrams, photos and examples

In depth notes on electric fields including photos and examples

In depth notes on magnetic fields including photos and examples.