Physics Flashcards, test questions and answers

Discover flashcards, test exam answers, and assignments to help you learn more about Physics and other subjects. Don’t miss the chance to use them for more effective college education. Use our database of questions and answers on Physics and get quick solutions for your test.

What is Physics?

Physics is the fundamental science of matter, energy, and their interactions. It provides a framework for understanding the physical world around us and allows scientists to explore phenomena on all scales: from subatomic particles to galaxies. Physics plays an important role in our everyday lives, as it helps us understand how cars move, why planes fly, and even how DNA replicates itself. Its principles are also used in engineering applications such as designing better materials or more efficient engines. To truly appreciate physics, one must have a basic understanding of its main topics – force, motion, energy, electricity and magnetism. Force is what causes objects to accelerate or change direction; motion refers to changes in position over time; energy describes how much work can be done with a given amount of effort; electricity involves the flow of charged particles; and magnetism involves the study of magnetic fields created by moving electric charges or currents through a material medium (such as air). All these topics help explain some fundamental laws that govern our universe such as Newton’s Laws of Motion or Maxwell’s Equations for Electromagnetism. In addition to providing insight into natural phenomena like gravity or light propagation physics can also be applied practically in areas like medicine where imaging techniques such as X-ray machines rely on its principles. Today physicists continue to search for answers about the mysteries hidden deep within our universe using increasingly powerful tools such as particle accelerators, telescope, lasers, computers, and satellites. With exciting discoveries being made every day we may soon find out more secrets behind this incredible field.