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V facts & stats

7 fact-checked facts about the letter V, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

What number does the Roman numeral V represent?

Answer5

In Roman numerals V is 5, X is 10, L is 50 and D is 500.

Which SI unit uses the symbol V?

AnswerVolt

The volt (V) is the unit of electric potential difference.

Going deeper

V is which letter of the English alphabet?

Answer22nd

V comes after U, the 21st letter, making it the 22nd.

The volt is named after which scientist?

AnswerAlessandro Volta

Alessandro Volta built the voltaic pile, an early electric battery, around 1800.

What does the Roman numeral XV equal?

Answer15

X is 10 and V is 5, so XV is 10 + 5 = 15.

Expert level

What is the letter V in Morse code?

Answer...-

V is three dots and a dash; -... is B and --.. is Z.

In classical Latin, the letter V was used to write which sounds?

AnswerBoth the vowel U and a W-like sound

Latin V stood for both u and w sounds; U and V became separate letters much later.

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