Choose the most appropriate statement about classification .
Things are grouped together on the basis of colour.
Things are grouped together on the basis of smell.
Things are grouped on the basis of certain similar properties.
Things are grouped together on the basis of shapes .
Which is the correct statement about solids ?
In solids, molecules are scattered.
In solids, molecules are loosely packed.
In solids, intermolecular space is very large.
In solids , the molecules are closely packed .
Which is the correct statement regarding all materials ?
Materials have mass and weight
Materials have mass and density
Materials have mass and colour.
Materials have mass and volume .
The material through which no light can pass through are:
Opaque materials
Transparent materials
Translucent materials
Hard materials
Materials which can be pressed or scratched easily are called:
Hard
Tough
Soft
Breakable
Of the following, which property is 'unique 'in case of metals.
Shape
Lustre
Hardness
Texture
Among the following properties of materials, which one is used in generaters and motors?
Fluidity
Magnetic
Diffusion
Chemical
What is matter ?
Anything that occupies space and has mass
Anything that occupies space and has volume
Anything has weight only
Anything that has volume only .
What is smallest identifiable unit of a substance ?
Atom
Molecule
Kilograms
Milligram
Who discovered Principle of Floating ?
Issac Newton
Archimedes
Albert Einstein
C.V.Raman
