Sound
🔊 What is Sound (in Physics)?
Sound is basically vibrations that travel through a medium (like air, water, or solid stuff) and get to your ears. Your brain then goes, “Oh snap, that’s a sound.”
📦 Key Stuff You Gotta Know:
Medium: Sound needs something to travel through. No air = no sound. That’s why space is silent,
Vibrations: It starts with something shaking—like a guitar string or your vocal cords.
Waves: Sound moves in longitudinal waves, where the particles vibrate back and forth (parallel to the direction of the wave).
📊 Properties of Sound Waves:
PropertyWhat It MeansFrequencyHow many waves per second (measured in Hz). Higher frequency = higher pitch.AmplitudeHow big the wave is. Bigger = louder.WavelengthDistance between waves.SpeedHow fast it travels (depends on the medium).
⚡ Example:
In air, sound travels around 343 m/s at room temp.
In water, it’s faster—about 1500 m/s.
In solids, it’s even faster—depends on the material. ⚡ Speed of Sound – The Basics: The speed of sound is how fast a sound wave moves through a medium (air, water, steel, etc.). 📍In Air (at room temperature, ~20°C or 68°F): 📊 Speed of Sound in Different Materials: MediumSpeed of SoundAir (20°C)~343 m/sWater~1500 m/sSteel~5100 m/sVacuum❌ 0 m/s (No sound. Space is mute, bro.) 🔥 Cool Facts:
Speed = ~343 meters per second (m/s)
That's about 1235 kilometers per hour (km/h) or 767 miles per hour (mph)