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WikiCards · Card list · Science cards · Moment of inertia
Rare card · Science
Moment of inertia, a Rare card
The moment of inertia is a measure of how difficult it is to change the rotation rate of a rigid body about a given axis.
- Rarity
- Rare
- Domain
- Science
- ATK
- 84
- DEF
- 77
- Power
- 161
- Wikipedia reads a year
- 260,000
Power 161 (ATK + DEF): stronger than 85 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- It is the ratio between the torque applied and the resulting angular acceleration about that axis.
- It plays the same role in rotational motion as mass does in linear motion.
- A body's moment of inertia about a particular axis depends on both the mass and its distribution relative to the axis, increasing with mass and distance from the axis.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Moment of inertia article was read about 260,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 84 and blocks with 77: each hit it takes is cut by 31 %.
How to get Moment of inertia
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.
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Card lists
- All cards from A to ZEvery card, by name
- Nature cards600 cards
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- History cards600 cards
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- Society cards600 cards
- Tier listS and A tiers by power (ATK + DEF)
- Legendary cards136 cards
- Epic cards262 cards
- Strongest cardsTop 100 by attack
Credits
Text : Wikipedia, Moment of inertia (revision), CC BY-SA 4.0. Photo : Витольд Муратов, CC BY-SA 3.0, Wikimedia Commons.
