Physics facts

 Physics is the science of matter and its behaviour




  • Comes from the Greek word, physikḗ, which means “science of nature.”

  • Physics was recognized as a discipline in the 19th century.

  • It aims to understand how the universe works.

  • It originated from astronomy, mathematics, and natural philosophy in 3000 B.C.
  • Galileo discovered the law of free fall after dropping two spheres from the Leaning Tower of Pisa.

  • An apple didn’t fall on Newton’s head when he discovered the law of universal gravitation. He simply wondered why apples fall downward rather than sideways.

  • A “Eureka moment” references Archimedes’ enthusiasm when he discovered buoyancy (The fact that he ran out naked is a minor detail.).

  • The universe is constantly expanding, getting faster and colder as time passes.

  • Time travel is possible – you’re doing it now, moving forward in time.

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