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DSSSB TGT Newton's laws — practice questions

Explore 6 free Newton's laws questions in DSSSB TGT Science. Open each question or exercise to read its content, reference answers and available explanation.

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Newton's laws questions and exercises with answers

Showing questions 1–6 of 6.

When two teams pull a rope in opposite directions with EQUAL force, the rope:Read the answer and worked solution →The force of friction acts in a direction:Read the answer and worked solution →An object's INERTIA depends primarily on its:Read the answer and worked solution →A 5 kg object is accelerating at 2 m/s². The net force acting on it is:Read the answer and worked solution →Match each law of motionRead the answer and worked solution →True or false: force and motionRead the answer and worked solution →

Worked practice questions

When two teams pull a rope in opposite directions with EQUAL force, the rope:

  1. Accelerates in the direction the wind blows on it
  2. Accelerates in the direction of one team's individual pull
  3. Stays still because the two forces are balanced
  4. Snaps at its weakest point along the rope's length
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Correct answer: C. Stays still because the two forces are balanced

**Equal and opposite forces are balanced:** their net is zero. The rope stays at rest. Only if one team pulls harder do the forces become unbalanced and the rope moves.

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The force of friction acts in a direction:

  1. Always perpendicular to the direction of motion
  2. Always in the direction of the applied force
  3. Same as gravity, always pointing downward
  4. Opposite to the direction of motion or attempted motion
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Correct answer: D. Opposite to the direction of motion or attempted motion

Friction always opposes motion (or attempted motion) between two surfaces in contact. That's why pushing a heavy box requires extra force to overcome friction before motion begins.

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An object's INERTIA depends primarily on its:

  1. Velocity, with faster moving objects having more inertia
  2. Mass, with heavier objects having more inertia
  3. Colour, with darker objects having more inertia
  4. Temperature, with hotter objects having more inertia
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Correct answer: B. Mass, with heavier objects having more inertia

Inertia is the resistance of an object to changes in its motion. Mass is the quantitative measure of inertia: heavier objects resist changes more strongly than lighter ones.

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