Available Answers

1. 1.

   Fill in the blanks:

   1. The amount of surface covered by a closed shape is called its _____________.
   2. The Sl unit of volume is _____________.
   3. The space occupied by an object is called its _____________.
   4. The volume of irregular solids can be measured using _____________
   5. Speed can be defined as the ratio of change of _____________.
2. 2.

   State whether the following statements are true (T) or false (F). Correct the false statements.

   1. The Sl unit of area is hectare.
   2. For equal volumes, measures of different substances differ.
   3. 1m³ is equal to 1000 dm³.
   4. The density of water is 1 g cm^-3.
   5. When the body is in motion, it does not change its position with respect to time.
3. 3.

   Choose the correct option:

   1. The correct relation for density is :
   2. A car travels for 2 hours at a constant speed of 60 km h^-1. The distance travelled by the car :
   3. Which of the following is a unit of area :
   4. 1 litre is equal to :
   5. A book of length 20 cm and breadth 5 cm is kept on the table. Its area is :
4. 4.

   Match the columns.

   Column A	Column B
   Area of irregular surface Volume of irregular solid Volume of liquid  SI unit of speed Sl unit of volume	Measuring cylinder  ms-1  Graph paper m3  Displacement method

5. 5.

   Show the following process in the form of flowchart:

   Instruments used for measuring volume of liquids.

6. 6.

   A heavier body has higher density. Give reasons.