WikiCards · Card list · Science cards · Joule
Rare card · Science
Joule, a Rare card
The joule is the unit of energy in the International System of Units.
- Rarity
- Rare
- Domain
- Science
- ATK
- 68
- DEF
- 51
- Power
- 119
- Wikipedia reads a year
- 350,000
Power 119 (ATK + DEF): stronger than 65 % of WikiCards cards.
Joule quiz: 3 questions
Three questions on the Joule card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
In terms of SI base units, one joule ______ to one kilogram-metre squared per second squared.
Answer
corresponds. In terms of SI base units, one joule corresponds to one kilogram-metre squared per second squared. From the Joule article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Friendship Heights–Southeast Line. Friendship Heights–Southeast Line 76 · Joule 68 · Michel Devoret 64 · Dennis F. Parker 61 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Joule. Joule 350,000 · Bhagabanpur II 1,900 · Ketoacyl synthase 1,400 · Friendship Heights–Southeast Line 640 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.
- In terms of SI base units, one joule corresponds to one kilogram-metre squared per second squared.
- One joule is equal to the amount of work done when a force of one newton displaces a body through a distance of one metre in the direction of that force.
- It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Joule article was read about 350,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 68 and blocks with 51: each hit it takes is cut by 20 %.
How to get Joule
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 Joule in the power ranking, all domains together.
- 2026–27 UEFA Champions LeagueLegendary · Society · ATK 72 DEF 47
- Kenneth Walker IIIEpic · Society · ATK 68 DEF 51
- Elijah JustEpic · Society · ATK 69 DEF 50
- Estée LauderRare · History · ATK 64 DEF 55
- AnnattoRare · Society · ATK 66 DEF 53
- 1931 China floodsUncommon · Nature · ATK 65 DEF 54
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, Joule (revision), CC BY-SA 4.0. Photo : Dione Murrieta, CC BY 4.0, Wikimedia Commons.


