Download free printable Class 9 Sphere Worksheets to practice. With thousands of questions available, you can generate as many Class 9 Sphere Worksheets as you want.

1.

A hemispherical bowl has a radius of 3.5 cm. What would be the volume of water it would contain?

1. 69.8 cu cm
2. 79.8cu cm
3. 99.8 cu cm
4. 89.8 cu cm

2.

Fill in the blanks: If a plane cuts a sphere into two equal position then each portion is _________.

1. Hemisphere
2. Segment
3. Circle
4. None of these

3.

The radius of a metallic spherical ball is 3cm. It is melted and recast into spherical balls each of radius 0.75cm. Find the number of small balls so formed.

1. 16
2. 24
3. 64
4. 32

4.

Fill in the blanks: Radius of a cricket ball is four times than that of a table tennis ball. The ratio of their volume is _______.

1. 4:1
2. 1:4
3. 64:1
4. 16:1

5.

Find the radius of a hemisphere whose curved surface area is 77 sq. cm.

1. 7 cm
2. 3.5 cm
3. 14 cm
4. None of these

6.

The volumes of the two spheres are in the ratio 64 : 27. Find the ratio of their radii.

1. 16:9
2. 4:3
3. 2:3
4. 4:9

7.

State True/False: If the radius of a sphere is halved , then its volume reduces to one eight of its previous value.

1. true
2. false

8.

State True/False: The volume of a sphere is equal to two-third of the volume of a cylinder whose height and diameter are equal to the diameter of the sphere.

1. true
2. false

9.

Find the diameter of a sphere whose surface area is 154 sq. cm.

1. 14 cm
2. 3.5 cm
3. 7 cm
4. 28 cm

10.

Fill in the blanks: The diameter of moon is approximately one fourth of the diameter of earth. The ratio of their surface area is _______.

1. 1:4
2. 1:16
3. 1:8
4. 1:6

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