Electromagnetic Spectrum (Grade 10 NSC Matric Physical Sciences): Flashcards
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Definition of electromagnetic (EM) radiation
Definition of electromagnetic (EM) radiation
Energy that travels through space as waves
Wave equation for EM waves
Wave equation for EM waves
(speed = frequency × wavelength)
Speed of light in vacuum ()
Speed of light in vacuum ()
m·s
Seven EM types (increasing frequency order)
Seven EM types (increasing frequency order)
Radio, microwave, IR, visible, UV, X-ray, gamma
Relationship between frequency and wavelength in EM waves
Relationship between frequency and wavelength in EM waves
Inverse - one increases, other decreases
Visible light wavelength range
Visible light wavelength range
400-700 nm
Uses of gamma rays
Uses of gamma rays
Kill bacteria, sterilise medical equipment
Uses of X-rays
Uses of X-rays
Image bone structures
Uses of infrared radiation
Uses of infrared radiation
Night vision, heat sensors, laser metal cutting
Relationship between frequency and energy in EM radiation
Relationship between frequency and energy in EM radiation
Higher frequency carries more energy