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Converting units - applications

Source: licencja: CC 0.

Zamiana jednostek – zastosowania

Learning objectives

  • You will memorise rules about converting units of length, mass and time.

Learning effect

  • You convert and apply units of length, mass and time.

Revise relations between units of length, mass and time. Make three posters with information about.

  1. Units of lengthunits of lengthUnits of length.

  2. Units of massunits of massUnits of mass.

  3. Units of timeunits of timeUnits of time.

Units of length

Task 1
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nagranie abstraktu

Open the applet and do the exercises by correctly converting unitsconverting unitsconverting units.

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Geogebra aplet - Zamiana jednostek długości. Galeria z opisami alternatywnymi poniżej.
Source: GroMar, licencja: CC BY 3.0.
Task 2
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nagranie abstraktu

Do the task exercise. Write down the answer.

Marysia bought 1 m of ribbon. First, she cut out a piece 35,5 cm long. From the left part she cut out 227 mm more. Compare the lengths of obtained pieces of ribbon.

Mass units

Task 3
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nagranie abstraktu

Match the same masses into pairs.

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Masses
Task 4
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nagranie abstraktu

Do the task exercise. Write down the answer.

Two gardeners were collecting apples to one box which can fit 37,5 kg of apples. One of them collected 20 kg and 350 dag and the other 1250 dag and 1620 g. Calculate if collected apples can fit into the box.

Time units

Task 5
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nagranie abstraktu

Do the task exercise. Write down the answer.

Each lesson lasts 45 minutes. Breaks are 10 min, apart from the lunch break, after the fourth lesson that lasts 20 min. How many times will a student that has six lessons spend at school?

Task 6
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nagranie abstraktu

Do the task exercise. Write down the answer.

Tomek spends a third of the daydayday at school, 14 of the remaining time on doing homework and improving his English. How much free time does he have per daydayday, if he sleeps around 8 hours?

Task 7
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nagranie abstraktu

An extra task:

Old Polish units of length:

- sążeń = 3 łokcie = 6 stóp,
- łokieć = 2 stopy,
- stopa = 288 mm,
- pręt = 15 stóp.

Using information in the frame, answer the questions.

a) How many metres does one sążeń have?

b) How many centimeters are four stopy?

c) How many łokieć is one pręt?

Remember:

  1. We can convert units of length using the relations between them:
    1 km = 1000 m
    1 m = 100 cm
    1 m = 10 dm
    1 dm = 10 cm
    1 cm = 10 mm

  2. We can convert units of massunits of massunits of mass using the relations between them:
    1 t = 1000 kg
    1 kg = 100 dag
    1 dag = 10 g
    1 kg = 1000 g

  3. We can convert units of time using the relations between them:
    1 daydayday = 24 hours
    1 hour = 60 minutes
    1 minute = 60 seconds
    1 quarterquarterquarter = 15 minutes

Do the revision exercises.

Exercises

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Exercise 1
Wersja alternatywna ćwiczenia: 12 hours 12 minutes is Możliwe odpowiedzi: 1. 122 min, 2. 12,2 h, 3. 12,12 h, 4. 1212 min
zadanie
Source: GroMar, licencja: CC BY 3.0.
Exercise 2

Net – mass of the article without the package.

Gross – mass of the article with the package.

Tare – mass of the package.

A glass with rice weighs 0,304 kg and net mass of this rice is 129 g.

Calculate how much is the tare. Give the answer in decagrams.

Using information in the frame, do the exercise.

Exercise 3

Asia’s mum was driving back home her daughters’ friends after a birthday party. Based on the drawing, calculate how many kilometers did she drive. Give the answer in English.

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Source: GroMar, licencja: CC BY 3.0.
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Exercise 4
Wersja alternatywna ćwiczenia: Indicate which pairs of expressions or words are translated correctly. Możliwe odpowiedzi: 1. jednostki długości - units of length, 2. jednostki masy - units of mass, 3. jednostki czasu - units of time, 4. zamiana jednostek - converting units, 5. doba - decimeter, 6. decymetr - quarter
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

converting units
converting units

zamiana jednostek

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wymowa w języku angielskim: converting units
day
day

doba

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wymowa w języku angielskim: day
decagram
decagram

dekagram

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wymowa w języku angielskim: decagram
decimeter
decimeter

decymetr

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wymowa w języku angielskim: decimetre
quarter
quarter

kwartał

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wymowa w języku angielskim: quarter
units of length
units of length

jednostki długości

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wymowa w języku angielskim: units of length
units of mass
units of mass
units of time
units of time

jednostki czasu

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wymowa w języku angielskim: units of time

Keywords

converting unitsconverting unitsconverting units

units of lengthunits of lengthunits of length

units of massunits of massunits of mass

units of timeunits of timeunits of time