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Indian Navy 10+2 B.Tech Cadet Potential and Kinetic Energy — practice questions

Explore 28 free Potential and Kinetic Energy questions in Indian Navy 10+2 B.Tech Cadet Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Potential and Kinetic Energy questions and exercises with answers

Showing questions 1–28 of 28.

As per your syllabus, the WORK-ENERGY theorem states that net work done equals which quantity?Read the answer and worked solution →As per your syllabus, the work done by a VARIABLE force F(x) over displacement from x_i to x_f is which?Read the answer and worked solution →As per your syllabus, is there an associated POTENTIAL ENERGY for FRICTION?Read the answer and worked solution →As per your syllabus, the SI unit of the spring constant k is which?Read the answer and worked solution →As per your syllabus, how many conservation equations does linear momentum yield in 3D?Read the answer and worked solution →Order the atomic models in this chapterRead the answer and worked solution →True or false: Rutherford's two difficultiesRead the answer and worked solution →Which model does this belong to?Read the answer and worked solution →Complete Bohr's first postulateRead the answer and worked solution →True or false: line spectraRead the answer and worked solution →Charge and neutralityRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Tap every problem Bohr's model was built to solveRead the answer and worked solution →Flip and pair: model with its pictureRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Strength or weakness?Read the answer and worked solution →Complete the size of the nucleusRead the answer and worked solution →Reading the models backRead the answer and worked solution →Bohr's postulatesRead the answer and worked solution →Explained, or left unexplained?Read the answer and worked solution →True or false: the nucleusRead the answer and worked solution →Order the argument: why Rutherford's atom should collapseRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Assertion and reason: modelsRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Flip and pair: problem with the model that solved itRead the answer and worked solution →

Worked practice questions

As per your syllabus, the WORK-ENERGY theorem states that net work done equals which quantity?

  1. Change in potential energy
  2. Change in displacement
  3. Change in momentum
  4. Change in kinetic energy ΔK
Show answer and solution

Correct answer: D. Change in kinetic energy ΔK

Your syllabus: W_net = ΔK = K_f − K_i. Holds for both constant and variable forces.

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As per your syllabus, the work done by a VARIABLE force F(x) over displacement from x_i to x_f is which?

  1. ∫ F(x) dx from x_i to x_f
  2. Area only of triangle
  3. F(x_f) × x_f − F(x_i) × x_i
  4. F(x_f) − F(x_i)
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Correct answer: A. ∫ F(x) dx from x_i to x_f

Your syllabus: W = ∫ F(x) dx. Area under the F vs x curve.

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As per your syllabus, is there an associated POTENTIAL ENERGY for FRICTION?

  1. Yes, V_friction = μ N x linearly
  2. Only for static friction case
  3. No, friction is non-conservative
  4. Yes, V = (1/2) μ N x² parabolic
Show answer and solution

Correct answer: C. No, friction is non-conservative

syllabus Points 8: friction is non-conservative (path-dependent W, closed-loop W ≠ 0). No PE function exists.

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More Physics topics

Work and EnergyWork and PowerPhysics and MeasurementRay OpticsRay Optics and Optical InstrumentsOpticsCurrent ElectricityC9kineticenergy