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WikiCards · Card list · Science cards · Speed of sound
Rare card · Science
Speed of sound, a Rare card
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium.
- Rarity
- Rare
- Domain
- Science
- ATK
- 80
- DEF
- 86
- Power
- 166
- Wikipedia reads a year
- 440,000
Power 166 (ATK + DEF): stronger than 85 % of WikiCards cards.
Speed of sound quiz: 3 questions
Three questions on the Speed of sound card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
More simply, the speed of sound is how fast ______ travel.
Answer
vibrations. More simply, the speed of sound is how fast vibrations travel. From the Speed of sound article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Honda Accord. Honda Accord 90 · Cinderella 86 · Speed of sound 80 · Alfred Nobel 76 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Alfred Nobel. Alfred Nobel 720,000 · Speed of sound 440,000 · Academy of Motion Picture Arts and Sciences 310,000 · Lambert W function 210,000 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- More simply, the speed of sound is how fast vibrations travel.
- At 20 °C, the speed of sound in air is about 343 m/s, or 1 km in 2.92 s or one mile in 4.69 s.
- It depends strongly on temperature as well as the medium through which a sound wave is propagating.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Speed of sound article was read about 440,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 80 and blocks with 86: each hit it takes is cut by 34 %.
How to get Speed of sound
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Speed of sound in the power ranking, all domains together.
- WitchcraftRare · Society · ATK 86 DEF 80
- Antonio GramsciRare · History · ATK 81 DEF 85
- KnightRare · Society · ATK 84 DEF 82
- Turkish languageRare · Society · ATK 88 DEF 78
- Francesca AlbaneseRare · Science · ATK 86 DEF 80
- YunnanRare · Society · ATK 90 DEF 76
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Speed of sound (revision), CC BY-SA 4.0. Photo : Ensign John Gay, U.S. Navy, Public domain, Wikimedia Commons.
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