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Study Notes Basic Mathematics Form One Pdf Basic Mathematics Form One Full Notes Perimeters And Areas Coordinate Of A Point Profit And Loss Numbers Geometry Approximations Units Decimal And Percentagefractions Topic 1: Numbers ~ Mathematics Form 1

TOPIC 4: UNITS | MATHEMATICS FORM 1

TOPIC 4: UNITS

A unit – is defined as a symbol or sign which is assigned to a number to describe a kind of measurement made

Units of Length

Conversion of One Unit of Length to Another

Convert one unit of length to another

The conversion of one unit to another is done by considering the arrangement below

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Units_1455562917862.Png

Example, from the above we get

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Example_1455563031142.Png

Computations on Metric Units of Length

Perform computations on metric units of length

Example 1

Convert

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Convert_1455563305418.Png

Solution

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Solution_1455563579212.Png

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/C_1455563710157.Png

Unit of Mass

Convertion of One Unit of Mass to Another

Convert one unit of mass to another

The conversion of one unit to another is done by considering the arrangement below

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Mass_1455563913296.Png

Example, from the above

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Example_1455564845063.Png

The conversion of​​ tonne to other units is done converting it to​​ kilogram first and then from kilogram to the required unit.

1 tonne = 1000kg

Computation on Metric Units of Mass

Perform computation on metric units of mass

Example 2

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Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Convert_1455599402551.Png

Solution

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Solution_1455599582864.Png

Units of Time

The units of time are of two types, smaller and larger units of time.Smaller units of time includes seconds, minutes, hours and days.Larger units of time includes week, month, year, decade, century,millennium.

Convertion of One Unit of Time to another

Convert one unit of time to another

The conversion of units of time to another can be done by considering the arrangement below

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Time_1455600176663.Png

Example, from the circle above

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Time_1455600297376.Png

Also

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Time_1455600374773.Png

Example 3

Convert

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Time_1455600575491.Png

Solution

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Solution_1455600731303.Png

Convertion of Unit Time of 12 Hour Clock to 24 Hour Clock and Vice Versa​​

Read and convert unit time of 12 hour clock to 24 hour clock and vice versa​​

The hours can exist in two systems:​​ 12- hour clock and 24 – hour clock.

A 12-​​ hour clock​​ has 12 hours between midnight and midday(a.m)and 12 hours between midday and midnight(p.m).

A 21 – hour <!–[endif]–>has 24 hours in a day.Times in the morning are the same in both systems.For times in the afternoon, convert by adding or subtracting 12 hours

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Example 4

Convert the following times from the 12 – hour clock to 24 – hour clock.

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Time_1455601487126.Png

Example 5

Convert the following times from the 24 – hour clock to 12 – hour clock.

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Time_1455601678670.Png

Units of Capacity

Standard Unit of Measuring Capacity

State the standard unit of measuring capacity

Capacity is related to the volume.

Definitions:

Capacity-is defined as the ability hold or contain something

The S.I unit of capacity is​​ litre.

Volume –is defined as the amount of space occupied by a substance

The S.I unit of volume is​​ cubic metres (m3)

Capacity is related to the volume as follows:

1 litre = 1000cm3​​ = 0.001m3​​ = 1dm3

Also​​ 1 ml = 1 cm3​​ 

Other units related to litre are kiloliter (kl), hectoliter (hl), decalitre (dal), litre (l), deciliter (dl), centiliter (cl) and mililitre (ml).

The conversion of one unit to another is done by considering the arrangement below

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Capacitiy_1455604476725.Png

Example, from the abov

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Capacitiy_1455604571250.Png

The Litre in Daily Life

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Use the litre in daily life

Example

Convert the following units into

Solution

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Solution_1455605383470.Png

Https://Sdimg.blob.core.windows.net/Images/Shuledirect/22472/Original/Solution_1455605559442.Png

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