Physical nature of Matter


 
 
Concept Explanation
 

Physical nature of Matter

Materials: a substance which is used in making different objects is called material. Example: steel is used to make knives, utensils, cars, buildings, bridges and chair is a material made from wood. Types of material:

  • 1.    Natural material: those materials which are obtained from nature like cotton, silk, coal.
  • 2.    Human made material: Those materials which are made by humans in factories by combining two or more materials are called human made material like plastic, glass etc.
  • Important points:

  • An object may be made up of different material, for example chair is made up of wood, plastic, iron.
  • Different types of objects can be made up of same material like plastic
  • An object can be made up of combinations of material like cakes, biscuits etc.
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following are correct :

    (a) The particles of matter are too small to be imagined.

    (b) Natural materials are obtained from nature like cotton, silk, coal.

    (c) The particles of matter have spaces between them.

    Right Option : D
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    Explanation
    Question : 2

    The physical state of water at  100^oC  is _____________________

    Right Option : D
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    Explanation
    Question : 3

    Which of the following is an example of Human made material?

    Right Option : C
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    Explanation
     
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