MCQ | NCERT Class 9 Science | Chapter 6: Materials Around Us
Q1. What are materials?
(a) Substances from which objects are made
(b) Only living things
(c) Only liquids
(d) Only metals
Answer: (a) Substances from which objects are made
Q2. Which of the following is a material?
(a) Wood
(b) Chair
(c) Table
(d) Book
Answer: (a) Wood
Q3. Which of the following objects is mainly made of wood?
(a) Wooden ruler
(b) Glass tumbler
(c) Iron nail
(d) Plastic bottle
Answer: (a) Wooden ruler
Q4. Why are objects made from different materials?
(a) Different materials have different properties
(b) All materials have exactly the same properties
(c) Materials cannot be changed
(d) Objects do not have any properties
Answer: (a) Different materials have different properties
Q5. Which property of a material tells us whether it allows light to pass through it?
(a) Hardness
(b) Transparency
(c) Solubility
(d) Magnetism
Answer: (b) Transparency
Q6. Which of the following is transparent?
(a) Clear glass
(b) Wooden board
(c) Cardboard
(d) Metal sheet
Answer: (a) Clear glass
Q7. Which of the following is opaque?
(a) Clear glass
(b) Clean water
(c) Wooden block
(d) Air
Answer: (c) Wooden block
Q8. A material through which some light can pass but objects cannot be seen clearly is called
(a) transparent
(b) translucent
(c) opaque
(d) magnetic
Answer: (b) translucent
Q9. Which of the following is an example of a translucent material?
(a) Butter paper
(b) Clear glass
(c) Wooden plank
(d) Iron sheet
Answer: (a) Butter paper
Q10. Which of the following materials is generally hard?
(a) Iron
(b) Cotton
(c) Sponge
(d) Wool
Answer: (a) Iron
Q11. Which of the following is generally soft?
(a) Cotton
(b) Iron
(c) Steel
(d) Stone
Answer: (a) Cotton
Q12. What happens when some substances are placed in water?
(a) They may dissolve or remain undissolved
(b) They always disappear permanently
(c) They always float
(d) They always sink
Answer: (a) They may dissolve or remain undissolved
Q13. A substance that dissolves in water is called
(a) soluble
(b) insoluble
(c) opaque
(d) magnetic
Answer: (a) soluble
Q14. Which of the following is soluble in water?
(a) Sugar
(b) Sand
(c) Stone
(d) Sawdust
Answer: (a) Sugar
Q15. Which of the following is insoluble in water?
(a) Salt
(b) Sugar
(c) Sand
(d) Lemon juice
Answer: (c) Sand
Q16. When a substance dissolves in water, the resulting mixture is called a
(a) solution
(b) solid
(c) metal
(d) crystal only
Answer: (a) solution
Q17. Which of the following liquids mixes completely with water?
(a) Cooking oil
(b) Kerosene
(c) Vinegar
(d) Wax
Answer: (c) Vinegar
Q18. Which of the following does not mix with water?
(a) Sugar solution
(b) Salt solution
(c) Cooking oil
(d) Lemon juice
Answer: (c) Cooking oil
Q19. Materials that are attracted by a magnet are called
(a) magnetic materials
(b) transparent materials
(c) soluble materials
(d) soft materials
Answer: (a) magnetic materials
Q20. Which of the following is a magnetic material?
(a) Iron
(b) Wood
(c) Glass
(d) Paper
Answer: (a) Iron
Q21. Why is glass commonly used for making windows?
(a) It allows light to pass through
(b) It is always magnetic
(c) It dissolves in water
(d) It is completely opaque
Answer: (a) It allows light to pass through
Q22. Why is wood commonly used for making furniture?
(a) It is generally strong and can be shaped
(b) It dissolves easily in water
(c) It is transparent
(d) It is attracted strongly by magnets
Answer: (a) It is generally strong and can be shaped
Q23. Which of the following shows that materials have different properties?
(a) Glass allows light to pass through while wood does not
(b) All materials behave in exactly the same way
(c) All materials dissolve in water
(d) All materials are attracted by magnets
Answer: (a) Glass allows light to pass through while wood does not
Q24. Which of the following is the best reason for grouping materials?
(a) To study and compare their properties easily
(b) To make all materials identical
(c) To change their colour
(d) To increase their weight
Answer: (a) To study and compare their properties easily
Q25. Which statement about materials is correct?
(a) Materials have different properties and are selected according to their uses
(b) All materials have the same properties
(c) Every material can be used for every purpose
(d) Materials cannot be grouped based on their properties
Answer: (a) Materials have different properties and are selected according to their uses
