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Conversion of multiples and submultiples of units

Source: licencja: CC 0.

Przeliczanie wielokrotności i podwielokrotności

You will learn
  • use multiples and submultiples of units,

  • convert the multiples and submultiples of units,

  • the English terms for multiples and submultiples of units and the ways of converting them.

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nagranie abstraktu

Familiarize yourself with the table showing the unit prefixes used in the SI system for the names of additional units and symbols of the multiples of units and the submultiples of basic units.

Unit prefix

Abbreviation

Factor

Factor

tera

T

1 000 000 000 000

= 10Indeks górny 12

giga

G

1 000 000 000

= 10Indeks górny 9

mega

M

1 000 000

= 10Indeks górny 6

kilo

k

1 000

= 10Indeks górny 3

1

= 10Indeks górny 0

decy

d

0,1

= 10Indeks górny -1

centy

c

0,01

= 10Indeks górny -2

mili

m

0,001

= 10Indeks górny -3

micro

µ

0,000 0001

= 10Indeks górny -6

nano

n

0,000 000 0001

= 10Indeks górny -9

pico

p

0,000 000 000 001

= 10Indeks górny -12

Exercise 1
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nagranie abstraktu

Answer the following questions:

a) What is the similarity between the kilogram and the kilometre?

b) How many meters does a kilometre have and how many grams does a kilogram have?

Exercise 2
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nagranie abstraktu

Read the values of the following data using their names and the names of units listed below:

N - newton; Pa - pascal; V - volt, W - watt, A - ampere,

e.g. 1 mA - one milliampere.

1 kW, 6 MN, 20 TV, 1 hPa, 5 mV, 10 μW, 7 nN, 8 dPa.

Exercise 3
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nagranie abstraktu

Convert the values of the data into basic units (save the calculation),

e.g. 7 GN = 7 · 1 000 000 000 = 7 000 000 000 N = 7 · 10Indeks górny 9 N

1 kW =
6 MN =
20 TV =
1 hPa =
5 mV = 
10 μW =
7 nN =
8 dPa =

Exercise 4
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nagranie abstraktu

Arrange the values for the data listed below from the smallest to the largest:

10 mm; 100 cm; 100 dm; 1 km; 10 pm.

Task 1
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nagranie abstraktu

Jacek, Wacek and Tomek measured the length and width of the notebook. The results are shown in the table.

Length

Width

Jacek

20,8 cm

1 400 000 000 pm

Wacek

208 mm

0,146 m

Tomek

0,208 m

1460 mm

Are the results given by the boys consistent? Give arguments for your answer.

Exercise 5
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nagranie abstraktu

Express the values in kilograms using the exponential notation:

  1. 356 000 000 000 kg

  2. 0,00015 mg

  3. 170 ng

  4. 3,5 million kg

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[applet] pokazuje stan wody w menzurce (o pojemności 500 ml) przed wstawieniem kamienia i po jego włożeniu do wody. Skala na menzurce jest wycechowana co 20 ml.
Source: GroMar, licencja: CC BY 3.0.
Exercise 6
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nagranie abstraktu

Open the applet and answer the following question:
A stone suspended on a rope was placed in a 500 ml glass container. What is the volume of the stone? Enter the result in cmIndeks górny 3 and mIndeks górny 3 considering the uncertainty of the measurement. The graduation of the scale is 20 ml.

Remember:
1 ml = 1 cmIndeks górny 3
1 millilitermilliliter milliliter = 1 cubic centimetrecubic centimetre cubic centimetre (cc)

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Exercise 7
Wersja alternatywna ćwiczenia: Read the following sentences and decide if they are true. Możliwe odpowiedzi: 1. Typical bacteria size is in the range from 100 nm to 100 µm. , 2. The thickness of the pen line is usually between 0,1 mm and 1 mm., 3. The distance from the Earth to the Sun is about 150000000 km., 4. The diameter of the hydrogen atom is larger than 1 mm., 5. The diameter of the human head is larger than 30 cm., 6. The distance from Lodz to Warsaw is larger than 300 km., 7. The circumference of the Earth (the length of the equator) is less than 40 thousand kilometres
zadanie
Source: GroMar, licencja: CC BY 3.0.
Exercise 8
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nagranie abstraktu

We have weighted a man figurine made of plasticine using balance scale. The pan scales was in balance when the following weights were placed on its pan: one weight of 50 g, three ones of 20 g, two of 5 g, one of 1 g, one of 500 mg, one of 20 mg and three of 10 mg. What is the mass of the man figurine?

Give the results in grams and kilograms.

Summary:

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nagranie abstraktu
  • During this lesson you have learned that the multiples and submultiples of the basic units available in the SI system enable the recording of measurement results and values of the measured quantities in a way which assures that this value will be closest to the real value of the measured quantity.

  • All physical quantities recorded in basic units can be converted into multiples and submultiples of a given unit. The prefixes of these quantities are the same to all units.

  • Multiple and submultiples are used in many situations in everyday life. They facilitate many things, for example doing shopping as well as describing the properties of very large and very small objects.

Exercises

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Exercise 9
Wersja alternatywna ćwiczenia: Determine which sentences are true. Możliwe odpowiedzi: 1. Johny calculated that 2,5 h is 8000 s., 2. The lower case letter m in front of the unit is the ‘mega’ prefix., 3. A grain of sand has the mass about 10 mg or 10-5 kg., 4. If 1 inch = 2,54 cm, than the diameter of a 48 inch TV screen is 221,92 cm., 5. Mrs. Ewa received a diamond that has 2458 carats, so its mass is 49,16 dag (1 carat = 0,2 g).
zadanie
Source: GroMar, licencja: CC BY 3.0.
Exercise 10

Wojtek has measured his cycling time on the distance of 2 km. He has obtained the following results: 5 min 20 s; 5 min 17 s; 5 min. 15 sec. and 4 min. 30 sec. Enter the average driving time (t Indeks dolny mean ) in seconds, minutes and hours with the accuracy of 1 second.

Exercise 11

In English write the content of the calculation task in which you will use one multiple and one submultiple of a length measure unit.

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Exercise 12
Wersja alternatywna ćwiczenia: Indicate which pairs of expressions or words are translated correctly. Możliwe odpowiedzi: 1. standardowe przedrostki jednostek SI - standard prefix of SI units, 2. podziałka skali - graduation of scale, 3. waga szalkowa - balance scale, 4. centymetr sześcienny - cubic centimetre , 5. przeliczenie jednostek - standard prefix of SI units, 6. wielokrotność jednostki - unit conversion, 7. podwielokrotność jednostki - multiple of unit, 8. jednostka podstawowa - submultiple of unit
zadanie
Source: GroMar, licencja: CC BY 3.0.
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Interaktywna gra, polegająca na łączeniu wyrazów w pary w ciągu jednej minuty. Czas zaczyna upływać wraz z rozpoczęciem gry. Jeden ruch to odkrywanie najpierw jednej potem drugiej karty z wyrazem. Każdy wyraz jest odczytywany. Kolejny ruch to odkrywanie trzeciej i czwartej karty. W ten sposób odsłuchasz wszystkie wyrazy. Nawigacja z poziomu klawiatury za pomocą strzałek, odsłuchiwanie wyrazów enterem lub spacją. Znajdź wszystkie pary wyrazów.
Source: Zespół autorski Politechniki Łódzkiej, licencja: CC BY 3.0.

Glossary

balance scale
balance scale

waga szalkowa

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wymowa w języku angielskim: balance scale
basic unit
basic unit

jednostka podstawowa

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wymowa w języku angielskim: basic unit
cubic centimetre
cubic centimetre

centymetr sześcienny

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wymowa w języku angielskim: cubic centimetre
graduation of scale
graduation of scale

podziałka skali

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wymowa w języku angielskim: graduation of scale
milliliter
milliliter

mililitr - 1 mililitr to jedna tysięczna litra

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wymowa w języku angielskim: milliliter
multiple of unit
multiple of unit

wielokrotność jednostki - nowy symbol jednostki powstały przez dołączenie do nazwy (lub symbolu) jednostki jednego z przedrostków wyrażający mnożnik dziesiętny spośród wymienionych poniżej: tera‑T, giga‑G, mega‑M, kilo‑k, hecto‑h, deca‑da

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wymowa w języku angielskim: multiple of unit
standard prefix of SI units
standard prefix of SI units

standardowe przedrostki jednostek SI - Standardowe przedrostki w układzie SI to: tera‑T, giga‑G, mega‑M, kilo‑k, hecto‑h, deca‑da, decy‑d, centy‑c, mili‑m, micro‑μ, nano‑n

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wymowa w języku angielskim: standard prefix of SI units
submultiple of unit
submultiple of unit

podwielokrotność jednostki - nowy symbol jednostki powstały przez dołączenie do nazwy (lub symbolu) jednostki jednego z przedrostków wyrażający mnożnik dziesiętny spośród wymienionych: decy‑d, centy‑c, mili‑m, mikro‑μ, nano‑n

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wymowa w języku angielskim: submultiple of unit
unit conversion
unit conversion

przeliczenie jednostek

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wymowa w języku angielskim: unit conversion
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m440432315f1af3e0_1518389044081_0
m440432315f1af3e0_1518389046957_0
m440432315f1af3e0_1518389050701_0
m440432315f1af3e0_1518389053241_0
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Keywords

unit conversionunit conversion unit conversion

multiple of unitmultiple of unit multiple of unit

submultiple of unitsubmultiple of unit submultiple of unit

basic unitbasic unit basic unit

standard prefix of SI unitsstandard prefix of SI units standard prefix of SI units