flashcards intro physics

TERM 3


Physics is study of how the universe works



Branches in physics



  1. Mechanics

  • How things work

  1. Optics

  • How light distributes/works

  1. Electromagnetism

  • How electricity and magnetism works

  1. Thermodynamics

  • How heat and energy works

  1. Relativity

  • How space and time works

  1. Acoustic

  • How sound works

Math and Physics

  • The connection between math and physics is that math is language of physics.



Quantities

  • The amount in something



Physical quantities

Specific material to measure an amount in something

  • We have seven physical quantities



Length

• Mass

• Time

• Electric current

• Temperature

• Amount of substance

• Luminous intensity (intensity of light)



SI BASED UNITES

  • Si based usintts are used to measure the physical quantities. They are units that everyone in the world uses (international system)



SI Base Units (7)

• Length (meter)

• Mass (kilogram)

• Time (second)

• Electric current (ampere)

• Temperature (kelvin)

• Amount of substance (mole)

• Luminous intensity (candela)