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NEET UG Laws of Motion — practice questions — page 4

Explore 117 free Laws of Motion questions in NEET UG Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Laws of Motion questions and exercises with answers

Showing questions 91–117 of 117.

The second law of motion is described as a law that is:Read the answer and worked solution →Internal forces within a system cancel away in:Read the answer and worked solution →For an isolated system of particles, the conserved quantity is:Read the answer and worked solution →Conservation of momentum follows from the second law and the:Read the answer and worked solution →Isaac Newton was born in the year:Read the answer and worked solution →Newton was born in the same year that saw the death of:Read the answer and worked solution →Newton returned to his mother's farm in 1665 because of a:Read the answer and worked solution →Newton was encouraged to write his great work by his friend:Read the answer and worked solution →When studying one body only, the forces that matter number:Read the answer and worked solution →Adding an action and its reaction to claim zero net force is an:Read the answer and worked solution →True or false on the laws of motionRead the answer and worked solution →Quick picks on the laws of motionRead the answer and worked solution →Match each idea to its ownerRead the answer and worked solution →Aristotle or GalileoRead the answer and worked solution →Zero force or notRead the answer and worked solution →From Aristotle to NewtonRead the answer and worked solution →Fill the gaps on the laws of motionRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Contact forces like friction ultimately arise from:Read the answer and worked solution →The laws of friction are best described as:Read the answer and worked solution →Friction between two surfaces in contact opposes:Read the answer and worked solution →A box stays at rest on the floor of an accelerating train. What accelerates it?Read the answer and worked solution →Crate on a truck bed, μs = 0.25, g = 10 m/s². Highest truck acceleration with no slipping?Read the answer and worked solution →In the spring law F = -kx, the minus sign means:Read the answer and worked solution →Forces of 3 N and 4 N act at right angles on a particle. What third force keeps it in equilibrium?Read the answer and worked solution →A 4 kg mass on a rope is held aside by a 30 N horizontal pull (g = 10 m/s²). Upper rope tension?Read the answer and worked solution →Which of these forces acting on a body is a contact force?Read the answer and worked solution →

Worked practice questions

The second law of motion is described as a law that is:

  1. Optical
  2. Thermal
  3. Vector
  4. Scalar
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Correct answer: C. Vector

1. Force and acceleration both carry direction as well as size. 2. The law relates them component by component. 3. So the second law of motion is a vector law. _Source: syllabus Physics Part I, Chapter 5, Laws of Motion._

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Internal forces within a system cancel away in:

  1. Threes
  2. Fours
  3. Fives
  4. Pairs
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Correct answer: D. Pairs

1. Every internal force comes with its equal and opposite partner. 2. The two act within the same system. 3. So internal forces cancel away in pairs. _Source: syllabus Physics Part I, Chapter 5, Laws of Motion._

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For an isolated system of particles, the conserved quantity is:

  1. Momentum
  2. Position
  3. Velocity
  4. Distance
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Correct answer: A. Momentum

1. No external force acts on an isolated system. 2. Its total is therefore unchanged over time. 3. That conserved quantity is the total momentum. _Source: syllabus Physics Part I, Chapter 5, Laws of Motion._

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