Physics Study Guide

Physics is the fundamental science that explores the nature of matter, energy, space, and time. It investigates everything from subatomic particles to the large-scale structure of the universe. Classical mechanics describes the motion of objects; thermodynamics governs heat and energy transfer; electromagnetism explains light and electrical phenomena; and quantum mechanics reveals the bizarre behaviour of particles at the smallest scales. Einstein's theories of relativity revolutionised our understanding of gravity and spacetime. Physics underpins all other sciences and drives technologies from lasers and semiconductors to nuclear energy and GPS systems. This sub-category tests knowledge of physical laws, theories, and concepts - from Newton's laws of motion to modern particle physics and the fundamental forces governing the universe.