Mathematics Test Week 1

What shape is the earth?

• Circle

• Square

• Cylinder

• Sphere

All living things on the earth are called

• Bitosphere

• Biosphere

• Hemisphere

• Densities

the thinnest layer of the earth is called

• density

• crust

• biosphere

• mantle

List 4 things that have the same shape as the earth

Half of a sphere is called

• Lithosphere

• Hemisphere

• Biosphere

• Semi-sphere

The formula for calculating the volume of a sphere is

• 2/3πr3

• πr²4.3

• 3/4πr³

• 4/3πr³

What is the volume of a sphere whose radius is 7cm?

• 1347 _^1/3

• 1437 _^1/3

• 57 _^1/3

• 154

Find the volume of a sphere whose radius is (10 _^1/2) cm

• 441

• 4851

• 451

• 8541

When finding the volume of a shape, what is the right way to leave your answer

• m or cm

• m² or cm²

• m³ or cm³

• cm3

what is the volume of a sphere whose radius is 3 _^1/2

• 179 _^2/3

• 197 _^1/3

• 97

• 791 _^2/3