The slang word 'vibe' is a shortened form of which word?
AnswerVibration
'Vibe' comes from 'vibration', describing the mood or feeling a person or place gives off.
Science · Facts & stats
Vibe facts & stats
7 fact-checked facts about vibrations, sound and good vibes, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Sound cannot travel through which of these?
AnswerA vacuum
Sound is a vibration passed through matter, so it cannot cross empty space with no particles.
Going deeper
What is the approximate range of frequencies a healthy young human can hear?
Answer20 Hz to 20,000 Hz
Human hearing spans roughly 20 to 20,000 vibrations per second, and the upper limit drops with age.
In the common tuning standard, the A above middle C is set to what frequency?
Answer440 Hz
A440, with A at 440 vibrations per second, is the widely used international standard concert pitch.
Which musical instrument is nicknamed 'the vibes'?
AnswerVibraphone
The vibraphone, a metal-barred mallet instrument with rotating fans for vibrato, is often called the vibes.
Expert level
On the decibel scale, an increase of 10 dB means the sound intensity is how many times greater?
Answer10 times
Decibels are logarithmic: every 10 dB step multiplies sound intensity by ten.
What are the patterns formed when sand on a vibrating plate collects along still lines called?
AnswerChladni figures
Ernst Chladni showed that sand gathers on a vibrating plate's nodal lines, revealing its vibration pattern.
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