Topic explanation

Standard explanation

Physics is the branch of natural science that studies matter, energy, motion, forces, space, time and their interactions.

Key points

• Define physics in academic and easy words.
• Explain why physics is divided into different branches.
• Distinguish between classical, modern and applied physics.
• Identify the branch related to a given physical problem.
• Explain how physics supports technology and other sciences.
• Mechanics studies motion and forces.
• Thermodynamics studies heat, work and temperature.
• Optics deals with light.

Labelled diagram