Assertion and Reason Quiz

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Questions and Answers

  1. What is the correct assessment of the given assertion and reason?

  • Assertion is false, but the reason is true.
  • Assertion is true, and the reason is the correct explanation of the assertion. (correct)
  • Assertion is true, but the reason is not the correct explanation of the assertion.
  • Assertion is true, but the reason is false.

  1. What happens to the value of 'g' as height and depth increases from the surface of the Earth?

  • The value of 'g' increases
  • The value of 'g' decreases (correct)
  • The value of 'g' becomes zero
  • The value of 'g' remains constant

  1. What is the resultant force and the direction of action if a 5 N and a 15 N forces are acting opposite to one another?

  • Resultant force is 20 N in the direction of the larger force
  • Resultant force is 10 N in the direction of the smaller force
  • Resultant force is 20 N in the direction of the smaller force
  • Resultant force is 10 N in the direction of the larger force (correct)

  1. What is the classification of inertia?

<p>Inertia is classified as rest and motion (B)</p> Signup and view all the answers

What is the definition of moment of a couple?

<p>The sum of the moments of the two equal and opposite forces of the couple (C)</p> Signup and view all the answers

  1. What is the correct classification of the types of force based on their application?

<p>Forces are classified as contact and non-contact forces (D)</p> Signup and view all the answers

What is the principle of moments?

<p>The sum of the clockwise moments about any point is equal to the sum of the anticlockwise moments about the same point (C)</p> Signup and view all the answers

What is the ratio of masses of two planets if the ratio of their radii is 4:7 and the ratio of their accelerations due to gravity is 3:2?

<p>16:21 (C)</p> Signup and view all the answers

What is the correct classification of the types of force based on their application?

<p>Contact forces and non-contact forces (B)</p> Signup and view all the answers

What is the correct statement of Newton’s second law?

<p>The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (D)</p> Signup and view all the answers

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