Measuring Mass

We will discuss about measuring mass. We know that, when we put two objects in a balance scale, the pan with heavier objects always drops downwards and the pan with lighter object goes up. So, we can compare weights of two different objects using a balance and say which is heavier.

A ball and a marble are placed on the two sides of a balancing scale. We see that the ball goes down. So it is heavier. The marble moves up because it is lighter. So, in the scale, the pan carrying the heavier object moves down and the pan carrying the lighter object moves up.

Measuring Mass

We keep adding more marbles until the two pans of the balancing scale are at the same level. We say that both the ball and the marbles weigh the same now.

The Balancing Scale

From the above, we can see that the ball weighs the same as the four marbles. To find out how heavy an object is, we need to weigh the object or measure the mass of the object.

Kilogram and Gram:

Kilogram is the standard unit for measuring mass. Kilogram is written as kg. We use kg to weigh heavier objects. We measure lighter objects in grams.

We know the vegetable seller is weighing potatoes in kilogram. The goldsmith is weighing a ring in grams. The wheat bags are weighing in quintals.

Some of the following weights are used like 10 kg, 5 kg, 2 kg, 1 kg, 500 g, 200 g, 100 g, 50 g etc.

The unit of weight is the gram. Kilogram is a bigger unit of weight.

1 kilogram is equal to 1000 grams

                             or

1000 grams is equal to 1 kilogram

We write gram as 'g' and kilogram as 'kg' in short form.

1 kg is equal to 1000 g

                  or

1000 g is equal to 1 kg



Kilogram is the standard unit for measuring mass. Kilogram is written as kg. We use kg to weigh heavier objects. We measure lighter objects in grams.

Kilogram and Gram


Questions on Measuring Mass:

1. Circle the heavier object in each pair.


2. Write the unit of weight in which we will use to measure the following:

(i) eraser

(ii) biscuit packet

(iii) four toffees

(iv) your weight

(v) soap-bar

(vi) gold ring

(vii) bag of rice

(viii) your suitcase and bedding


Suhani and her mother are sitting on the opposite ends of a see-saw.

Measuring Mass

Who is heavier among the two?

__________ is heavier.


Now Suhani and her brother Ishan are sitting on opposite ends of a see-saw.

Measuring Mass

Tick (✔) the correct statement.

Ishan is heavier than Suhani.

Suhani is heavier than Ishan.

Suhani and Ishan have same weight.

Now Suhani and Ishan are sitting together on one end while their mother is sitting on the opposite end of the see-saw.

Measuring Mass

Tick (✔) the correct statement.

The combined weight of Suhani and Ishan is more than the weight of their mother.

The weight of their mother is more than the combined weight of Suhani and Ishan.

The combined weight of Suhani and Ishan is exactly the same as the weight of their mother.


Extra questions for sharp students on measuring mass!

3. Find the total weight in kg. 2 kg sugar, 3 kg flour and 1 kg onion.

2. Sam weighs 45 kg and Aaron weighs 56 kg. What is their total weight?

3. John bought 2 kg apples, 4 kg mangoes, 1 kg pears and put them in his bag. Find the total weight of the fruits in his bag.

4. Three brothers weigh 30 kg, 25 kg and 45 kg. Find their total weight.

5. A man weighs 72 kg and his wife weighs 59 kg. How much does the man weigh more than his wife?

6. Papaya sells at $16 per kg. Find the cost of 4 kg of these papayas.

7. A bag of wheat weighs 25 kg. Find the total weight of 8 such bags.

You might like these





2nd Grade Math Practice

From Measuring Mass to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.

Share this page: What’s this?

Recent Articles

  1. Expanded form of Decimal Fractions |How to Write a Decimal in Expanded

    Jul 22, 24 03:27 PM

    Expanded form of Decimal
    Decimal numbers can be expressed in expanded form using the place-value chart. In expanded form of decimal fractions we will learn how to read and write the decimal numbers. Note: When a decimal is mi…

    Read More

  2. Worksheet on Decimal Numbers | Decimals Number Concepts | Answers

    Jul 22, 24 02:41 PM

    Worksheet on Decimal Numbers
    Practice different types of math questions given in the worksheet on decimal numbers, these math problems will help the students to review decimals number concepts.

    Read More

  3. Decimal Place Value Chart |Tenths Place |Hundredths Place |Thousandths

    Jul 21, 24 02:14 PM

    Decimal place value chart
    Decimal place value chart are discussed here: The first place after the decimal is got by dividing the number by 10; it is called the tenths place.

    Read More

  4. Thousandths Place in Decimals | Decimal Place Value | Decimal Numbers

    Jul 20, 24 03:45 PM

    Thousandths Place in Decimals
    When we write a decimal number with three places, we are representing the thousandths place. Each part in the given figure represents one-thousandth of the whole. It is written as 1/1000. In the decim…

    Read More

  5. Hundredths Place in Decimals | Decimal Place Value | Decimal Number

    Jul 20, 24 02:30 PM

    Hundredths Place in Decimals
    When we write a decimal number with two places, we are representing the hundredths place. Let us take plane sheet which represents one whole. Now, we divide the sheet into 100 equal parts. Each part r…

    Read More