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  Question Bank – Laws of Motion 1. Very Short Answer Questions (1 Mark) State Newton’s first law of motion. Answer : An object remains at rest or in uniform motion in a straight line unless acted upon by an external force. What is inertia?

  Question Bank – Work, Energy, and Power 1. Very Short Answer Questions (1 Mark) Define work. Answer : Work is said to be done when a force is applied to an object, and the object displaces in the direction of the applied force. What is the SI unit of work? Answer : Joule (J). State the condition for work to be zero.

Question Bank – Gravitation 1. Very Short Answer Questions (1 Mark) What is the value of the universal gravitational constant (G)? Answer : 6.674 × 1 0 − 11   Nm 2 / kg 2 6.674 \times 10^{-11} \, \text{Nm}^2/\text{kg}^2 6.674 × 1 0 − 11 Nm 2 / kg 2 State Newton’s law of gravitation. Answer : Every particle in the universe attracts every other particle with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them.