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KCET Laws of Motion — practice questions — page 3

Explore 70 free Laws of Motion questions in KCET 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 61–70 of 70.

Three of these are wrong. Find the one that holds.Read the answer and worked solution →Tap every statement the first law licensesRead the answer and worked solution →Flip and pair: name with contributionRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Order the historical argumentRead the answer and worked solution →Stack Newton's lawsRead the answer and worked solution →Pull the rope to bigger or smallerRead the answer and worked solution →Sort the forces and the toolsRead the answer and worked solution →Match each dynamics termRead the answer and worked solution →Complete Newton's lawsRead the answer and worked solution →

Worked practice questions

Three of these are wrong. Find the one that holds.

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Questions
  1. Question
    Three of these statements about the first law are false.
    Choices
    1. Item
      Zero net force means zero acceleration
      Correct
      Yes
    2. Explanation
      The chapter says this Aristotelian view is wrong.
      Item
      Force is needed to keep moving
    3. Explanation
      It covers uniform motion in a straight line too.
      Item
      It applies only to bodies at rest
    4. Explanation
      That is the definition of momentum, not the first law.
      Item
      It defines momentum as mass times velocity
Each trap restores a pre-Galilean belief. Source: syllabus Physics, Ch 4 Laws of Motion.

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Tap every statement the first law licenses

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Questions
  1. Items
    1. Text
      Acceleration is zero
      Matches the category
      Yes
    2. Text
      A resting body stays at rest
      Matches the category
      Yes
    3. Text
      A moving body keeps constant velocity
      Matches the category
      Yes
    4. Text
      The body must slow down
      Matches the category
      No
    5. Text
      The body must stop
      Matches the category
      No
    Category
    Follows when net external force is zero
What follows when the net force is zero. Source: syllabus Physics, Ch 4 Laws of Motion.

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Flip and pair: name with contribution

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Matching pairs
  1. A
    Aristotle
    B
    the mistaken view, corrected here
  2. A
    Galileo
    B
    inclined planes and the law of inertia
  3. A
    Newton's first law
    B
    motion persists without external force
  4. A
    Newton's second law
    B
    force and rate of change of momentum
  5. A
    p = mv
    B
    momentum
Who established what. Source: syllabus Physics, Ch 4 Laws of Motion.

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