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WikiCards · Card list · Science cards · Center of mass
Uncommon card · Science
Center of mass, an Uncommon card
In physics, the center of mass of a distribution of mass in space is the unique point at any given time where the weighted relative position of the distributed mass sums to zero.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 72
- DEF
- 48
- Power
- 120
- Wikipedia reads a year
- 95,000
Power 120 (ATK + DEF): stronger than 55 % of WikiCards cards.
Center of mass quiz: 3 questions
Three questions on the Center of mass card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Calculations in mechanics are often ______ when formulated with respect to the center of mass.
Answer
simplified. Calculations in mechanics are often simplified when formulated with respect to the center of mass. From the Center of mass article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Center of mass. Center of mass 72 · Digital-to-analog converter 67 · Masonic lodge 64 · Fuxi 60 ATK in WikiCards.
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.
- For a rigid body containing its center of mass, this is the point to which a force may be applied to cause a linear acceleration without an angular acceleration.
- Calculations in mechanics are often simplified when formulated with respect to the center of mass.
- It is a hypothetical point where the entire mass of an object may be assumed to be concentrated to visualise its motion.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Center of mass article was read about 95,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 72 and blocks with 48: each hit it takes is cut by 19 %.
How to get Center of mass
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 Center of mass in the power ranking, all domains together.
- Gutta-perchaUncommon · Nature · ATK 63 DEF 57
- Sebastian IngrossoUncommon · Arts · ATK 65 DEF 55
- FathomUncommon · Science · ATK 63 DEF 57
- Exponential growthUncommon · History · ATK 67 DEF 53
- FuxiUncommon · Arts · ATK 60 DEF 60
- Storm ThorgersonUncommon · Arts · ATK 73 DEF 47
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, Center of mass (revision), CC BY-SA 4.0. Photo : APN MJM, CC BY-SA 3.0, Wikimedia Commons.
