Olympiad – Class IX – Science - Che - Matter in Our Surrondings

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Question - 1

A student poured an equal amount of water into 4 containers as shown below.

What result does this experiment show?

  • A Water has definite volume.
  • B Water has no definite shape.
  • C Water has definite mass.
  • D Water has no definite volume.

Question - 2

Which of the following has a direct effect on the K.E. of particles?

  • A Pressure
  • B Potential energy
  • C Temperature
  • D All of the above

Question - 3

Look at the venn diagram given below.

Which of the following can be placed in 'Z'?

  • A Water
  • B Dry ice
  • C Salt
  • D Jelly

Question - 4

Based on the statements given below choose the correct answer.
P. Some sugar can be added to a glassful of water without causing an overflow.
Q. Liquids have spaces present between the molecules.

  • A P and Q are true and Q explains P.
  • B P and Q are true but Q does not explain P.
  • C Only P is true.
  • D Only Q is true.

Question - 5

What happens to a substance when the space between its particles is decreased?

  • A The volume of the substance increases.
  • B The volume of the substance decreases.
  • C The mass of the substance increases.
  • D The mass of the substance decreases.

Question - 6

Match the entries in Column I with those in Column II.

  Column-I Column -II
a. Evaporation Liquid to gas at a fixed temperature
b. Boiling Solid to gas
c. Sublimation Gas to solid
d. Hoar frost Liquid to gas at any temperature
  • A a-4,b-l,c-2,d-3
  • B a-l,b-2,c-3,d-4
  • C a-2, b-3, c-4, d-l
  • D a-4, b-I, c-3, d-2

Question - 7

Which of the following have a regular, repeated molecular pattern and large number of free surfaces in three dimensional space?

  • A Solids and liquids
  • B Liquids and gases
  • C Solids
  • D Gases

Question - 8

Which of the following is used for determining the mass of a solid?

  • A Microscope
  • B Balance
  • C Thermometer
  • D Telescope

Question - 9

Which element has neither a definite shape nor volume?

  • A Sodium
  • B Hydrogen
  • C Iodine
  • D Lithium

Question - 10

Which of the following statements is NOT true?

  • A All forms of matter have volume.
  • B All forms of matter have colour.
  • C All forms of matter have mass.
  • D Matter can be living or non-living.