alleryStart learning →As per your syllabus, the KINETIC energy of a body of mass m moving with speed v is which?
- m v
- (1/2) m v
- m v²
- (1/2) m v²
Show answer and solution
Correct answer: D. (1/2) m v²
Your syllabus: K = (1/2) m v².
Scalar; always non-negative.
Indian Navy SSR Potential and Kinetic Energy — practice questions
Explore 28 free Potential and Kinetic Energy questions in Indian Navy SSR Physics. Open each question or exercise to read its content, reference answers and available explanation.
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As per your syllabus, the KINETIC energy of a body of mass m moving with speed v is which?Read the answer and worked solution →As per your syllabus, the zero of GRAVITATIONAL potential energy is conventionally chosen at which level?Read the answer and worked solution →As per your syllabus, an object dropped from height h, just before hitting the ground, has kinetic energy equal to which value?Read the answer and worked solution →As per your syllabus, the elastic potential energy stored in a spring extended by x is which?Read the answer and worked solution →As per your syllabus, during the collision interval itself, conservation of momentum holds at which moments?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 zero of GRAVITATIONAL potential energy is conventionally chosen at which level?
- The ground (reference)
- The launching height
- Infinity always
- The centre of Earth
Show answer and solution
Correct answer: A. The ground (reference)
syllabus Points 7: for mgh form, zero is taken at ground level.
PE is defined up to an additive constant.
As per your syllabus, an object dropped from height h, just before hitting the ground, has kinetic energy equal to which value?
- (1/2) m g h
- 2 m g h
- m g h / 2
- m g h
Show answer and solution
Correct answer: D. m g h
Your syllabus: all gravitational PE = mgh has converted to KE on impact ⇒ K = mgh.
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