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Monday, 20 April 2026
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Physics Past Questions and Answers

Topic: Contact

Jamb Physics Questions - Contact

Question 1:
The force with which an object is attracted to the earth is called its
  • A Acceleration
  • B Mass
  • C Gravity
  • D Impulse
  • E Weight
View Answer & Explanation
Question 2:
What type of reaction is represented by the following scheme? \( ^2 _1X \) + \( ^{2} _{1}Y \) + \( ^{3} _{2}Z \) + \( ^{1} _{0}n \) + energy
  • A Fusion reaction
  • B Fission reaction
  • C Chain reaction
  • D Radioactive decay
View Answer & Explanation
Question 3:
In the fig above W1 = 200g, and W2 =450g . Calculate the extension of the spring per unit load?
[g = 10ms-2]
  • A 6.0 x 10<sup style='font-size: smaller;'>-5</sup>mN<sup style='font-size: smaller;'>-1</sup>
  • B 2.5 x 10<sup style='font-size: smaller;'>-4</sup>mN<sup style='font-size: smaller;'>-1</sup>
  • C 6.0 x 10 <sup style='font-size: smaller;'>-3</sup>mN<sup style='font-size: smaller;'>-1</sup>
  • D 2.5 x 10 <sup style='font-size: smaller;'>-2</sup>mN<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 4:
Calculate the magnitude of the force required to just move a 20kg object along a horizontal surface if the coefficient of friction is 0.2. [g = 10ms-2]
  • A 400.0N
  • B 40.0N
  • C 4.0N
  • D 0.4N
View Answer & Explanation
Question 5:
Which of the following statements are TRUE about frictional force? i. it is always a disadvantage ii. it is sometimes a disadvantage iii. it always exist where there is a relative motion of two bodies that are in contact iv. it is sometimes very useful
  • A I, iii only
  • B I, iv only
  • C Ii, iii only
  • D Iii, iv only
View Answer & Explanation