The Physics
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Opus in profectus

# International System of Units

## Practice

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### practice problem 4

Complete the following puns based on the SI prefixes.
1. 10−15 boy =
2. 10−12 door =
3. 101 cards =
4. 10−6 fish =
5. 1021 piccolos =
6. 2 × 103 mockingbirds =
7. 106 pains =
8. 101 millipedes =
9. 1012 microphones =
10. 1012 pins =
11. 101 rations =

#### solution

Here are the answers. Since some of the words are obscure, especially for non-native speakers of English, I've added definitions.

1. 10−15 boy = 1 attoboy
(attaboy: an informal expression of praise or encouragement; derived from the phrase "that a boy")

2. 10−12 door = 1 picodoor
(picador: a horseman in a bullfight who jabs the bull with a pike to weaken it)

3. 101 cards = 1 dekacard
(deck of cards: a set of playing cards; also called a pack of cards, but that doesn't work as a joke)

4. 10−6 fish = 1 microfish
(microfiche: a small sheet of film on which many pages of printed material have been photographed)

5. 1021 piccolos = 1 gigalo
(gigolo: a young man supported financially by an older woman in return for sex)

6. 2 × 103 mockingbirds = 2 kilomockingbird
(To kill a mockingbird: a 1960 novel by the American author Harper Lee)

7. 106 pains = 1 megahertz
(mega hurts: not to be confused with a Hertz donut)

8. 101 millipedes = 1 centipede
(centipede: a multi-segmented, predatory arthropod with one pair of legs per segment)

9. 1012 microphones = 1 megaphone
(megaphone: a funnel shaped device for amplifying the human voice)

10. 1012 pins = 1 terapin
(terrapin: a name applied to several different species of turtle)

11. 101 rations = 1 dekaration
(decoration: a word in English you should not need a definition for)