#physics and chemistry notes

[er-cryptid]

Nature of Light

-- light is electromagnetic radiation

-- electromagnetic radiation      -- type of energy      -- embodied in oscillating electric and magnetic fields

-- magnetic field = region of space where a magnetic particle experiences a force

-- electric field = region of space where an electrically charged particle experiences a force

-- in a vacuum, these waves move at 3.00 x 10^8 m/s

-- waves could circle Earth in 1/7 seconds

-- sound travels slower than light

-- sound travels at 340 m/s

-- ex: fireworks      -- light is seen almost instantly      -- sound travels slightly slower      -- sound reaches you later

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[er-cryptid]

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