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9th Grade > Physics

MATTER PROPERTIES PHYSICS MCQs

Total Questions : 90 | Page 2 of 9 pages
Question 11. The unit of strain is
  1.    newton
  2.    joule
  3.    pascal
  4.    no unit
 Discuss Question
Answer: Option D. -> no unit
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 12. If a 1 m long steel wire having area 5 * 10-5 is stretched through 1 mm by force of 10, 000 N then young modulus of wire is
  1.    2 * 1011 N m-2
  2.    3 N m-4
  3.    4 N m-2
  4.    5 N m-2
 Discuss Question
Answer: Option A. -> 2 * 1011 N m-2
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 13. The bubble is stable because the atmospheric pressure inside and outside is
  1.    equal
  2.    different
  3.    lesser
  4.    more
 Discuss Question
Answer: Option A. -> equal
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 14. At a height of about 30 km, the atmospheric pressure becomes
  1.    1200 Pa
  2.    1000 Pa
  3.    1300 Pa
  4.    1500 Pa
 Discuss Question
Answer: Option B. -> 1000 Pa
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 15. A wooden cube of sides 10 cm each dipped in water. The up thrust of water would be
  1.    20 N
  2.    12 N
  3.    10 N
  4.    15 N
 Discuss Question
Answer: Option C. -> 10 N
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 16. Mass per unit volume is called
  1.    resistance
  2.    volume
  3.    density
  4.    weight
 Discuss Question
Answer: Option C. -> density
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 17. Solids have fixed
  1.    volume only
  2.    shape only
  3.    position
  4.    volume and shape
 Discuss Question
Answer: Option D. -> volume and shape
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 18. SI unit of density is
  1.    kgm-4
  2.    kgm-3
  3.    kgm-2
  4.    kgm
 Discuss Question
Answer: Option B. -> kgm-3
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 19. The states of matter are
  1.    2
  2.    3
  3.    5
  4.    6
 Discuss Question
Answer: Option B. -> 3
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 20. A comparison of such a change caused by the stress with the original shape, volume or length is called
  1.    stress
  2.    strain
  3.    density
  4.    elasticity
 Discuss Question
Answer: Option B. -> strain
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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