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The electromagnetic spectrum encompasses various types of waves, categorized from lowest to highest frequency. Radio waves are utilized for signaling, while microwaves are employed in cooking. Infrared rays detect heat, and visible light is the range we can perceive. Ultraviolet rays, generated by the sun, can cause tanning, while X-rays are widely used in medical imaging. Gamma rays are currently under research for their potential applications. Key terms include opaque (not see-through, like a wall), transparent (clear, like glass), and translucent (diffuses light, like a glass of water).
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Electromagnetic Spectrum The spectrum of Electromagnetic waves
Variety (from lowest to highest) • Radio waves (rw) –used to signal • Microwaves (mw) – used to cook • Infrared rays (irl) - used to detect heat • Visible light (vl) – you can see • UV rays (uvr) – created by sun, causes tanning • X-rays (xr) – used medically • Gamma Rays (gr) – being researched
Definitions • Opaque – cant see through • a wall • Transparent – can see through • Glass • Translucent – changes light speed • a Glass of water
