Measuring Units
Measurement is to find a number that shows the amount of something.
What is a measuring unit?
A measuring unit is a standard quantity used to express a physical quantity. Let us learn about the physical quantities and some of the standard units used to measure them.
The Physical quantities are further classified into 4 types:
1. Lengths of given objects
2. Weights of given objects
3. Money
4. Time
1. Lengths of given objects
Length describes how long a thing is from one end to the other. Length is used to identify the size of the object or a distance from one point to another.

Metric Unit 

US Standard Unit (English Unit or Customary Unit) 
Millimetre (mm): Used to measure very short lengths or thicknesses.
Example: length of a pen tip. 
Inch (in): Used to measure the length of small objects.
Example: Length of a rod. 
Centimetre (cm): Used to measure small lengths.
Example: Length of a pen. 
Foot (ft): Used to measure short distances and heights.
Example: Heights of buildings. 
Meter (m): Used to measure big lengths.
Example: Length of a classroom. 
Yard (yd): It is bigger than a foot.
Example: Length of a football field. 
Kilometre (km): Used to measure very long lengths or distance.
Example: Distance between two places. 
Mile (mi): Used to measure long distances.
Example: Distance between two places. 
The object can be differentiated or compared by its length.
Here’s an image showing 3cm length.
The above example is an illustration of how the object is compared by its length.
Here are few conversions of length:
1. 1 km = 1000m
2. 1m = 100 cm. 1cm = 10mm
2. Weights of given objects
Metric Unit 

US Standard Unit (English Unit or Customary Unit) 
Millimetre (mm): Used to measure very light things.
Example: Medicines 
Ounce (oz): Used to measure small quantities.
Example: Bread. 
Gram (g): Used to measure small things.
Example: Potato 
Pound (lb): Used to measure body weight, etc.
Example: Bread 
Kilogram (kg): Used to measure heavy things.
Example: Bodyweight. 
Ton: Used to measure much heavier things.
Example: Trucks and heavy load

Measuring UnitsPDF
Cuemath’s learning platform has carefully designed simulations to help the student visualize concepts. This blog will help us understand about the measuring units. Here is a downloadable PDF to explore more.
Here are few conversions of weight:
1. 1 kg = 1000 grams.
2. 1 gram = 1000 milligrams.
3. 1 gram = (1/1000) kg.
4. 1 milligram = (1/1000) gram.
The object can be compared with its weight.
The above example is an illustration of how an object is compared by its weight.
Note: The heavier object weighs down.
Country


US Standard Unit (English Unit or Customary Unit)

India

Indian Rupees.

United States

United States Dollars.

United Kingdom.

Pound.

Japan

Japanese Yen.

Australia

Australian dollar.

Russia

Russian Rouble.

Here are few currency conversions:
One U.S Dollar = 74.74 rupee.
One Pound = 96.97 rupee.
One Rupee = 1.40 Japanese yen.
According to Indian currency:

₹1 = 100 paisa

1 paisa = (1/100) rupee
4. Time
The ongoing sequence of events is time.
The basic unit of time is the second.
There are also minutes, hours, days, weeks, months and years.
Metric Units and US Standard Unit are the same for the time

Second (s)

Minute (min)

Hour (hr)

Day

Week

Month

Yea

Whereas,
Measuring units is a basic concept which we come across in our daily life. Teaching kids about the measuring unit such as length, weight, money and time give them a good idea and will let the kid explore more.
It gives a proper image to the kids in comparing the objects based on the units because kids must understand the importance of measurement and be familiar with their use in everyday life. It is an essential life skill.

Question 1: Which rope is the longest?
Solution: (a) X

Question 2: B and E are longer than B and D by ____ units. (Each stands for 1 unit)
Solution: (d) 4

Question 3: Which is the second heaviest fruit?
 (a) Apple
 (b) Mango
 (c) Watermelon
 (d) can’t be determined
Solution: (a) Apple

Question 4: _____ is costlier than the Ball and _____ is cheaper than the Toy Plane.
 (a) Doll, Toy plane
 (b) Doll, Toy scooter
 (c) Toy plane, Ball
 (d) Toy plane, Toy scooter
Solution: (b) Doll, Toy scooter

Question 5: The hour hand of the clock is _____ if the clock shows the time 7:45 PM.
 (a) Between 7 and 8, closer to 8
 (b) Exactly at 7
 (C) Exactly at 8
 (D) Between 7 and 8, closer to 7
Solution: (a) Between 7 and 8, closer to 8

Question 6: If Tarun's birthday is on the third Saturday of September 20XX, on which date Tarun will celebrate his birthday.
 (a) 4th September
 (b) 11th September
 (c) 25th September
 (d) 17th September
Solution: (d) 17th September
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Frequently Asked Questions (FAQs)
What are the 7 basic units of measurement?
 Length  meter (m)
 Time  second (s)
 Amount of substance  mole (mole)
 Electric current  ampere (A)
 Temperature  kelvin (K)
 Luminous intensity  candela (cd)
 Mass  kilogram (kg)
Is SI an unit?
The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system. It is the only system of measurement with an official status in nearly every country in the world.