General Knowledge · 2
What is the speed of sound in air at room temperature?
Answer
343 meters per second
The speed of sound in air at room temperature (approximately 20°C) is about 343 meters per second (1,235 km/hour or 767 mph). Sound travels slower in cold air and faster in warm air because molecular motion increases with temperature. The speed of sound depends on the medium—it travels faster in water and even faster in solids like steel.
💡 Did you know?
Sound travels much slower than light (1 million times slower), which is why we see lightning before hearing thunder—even from nearby lightning, there's a visible delay.
Other options people guess
- 200 meters per second
- 500 meters per second
- 600 meters per second
Topics
- physics
- science
- sound
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