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DSSSB TGT C9kineticenergy — practice questions

Explore 9 free C9kineticenergy questions in DSSSB TGT Physics. Open each question or exercise to read its content, reference answers and available explanation.

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C9kineticenergy questions and exercises with answers

Showing questions 1–9 of 9.

As per your syllabus, Science, ENERGY is defined as which property?Read the answer and worked solution →As per your syllabus, what is the SI unit of ENERGY — the same as that of work?Read the answer and worked solution →As per your syllabus, what is the WORK-ENERGY THEOREM?Read the answer and worked solution →As per your syllabus, what is KINETIC ENERGY?Read the answer and worked solution →As per your syllabus, what is the formula for the KINETIC ENERGY of an object of mass m moving at speed v?Read the answer and worked solution →As per your syllabus, if the MASS of an object doubles (while its speed stays the same), how does its KINETIC ENERGY change?Read the answer and worked solution →As per your syllabus, an object with mass 2 kg moving at 10 m/s has what KINETIC ENERGY?Read the answer and worked solution →CLASS10 · Physics · Magnetic Effect — Quick True/FalseRead the answer and worked solution →True or false on magnetism (CBSE Cl 10)Read the answer and worked solution →

Worked practice questions

As per your syllabus, Science, ENERGY is defined as which property?

  1. The mass of an object
  2. The capacity of an object to do work
  3. The temperature of an object
  4. The colour of an object
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Correct answer: B. The capacity of an object to do work

As per your syllabus, energy = capacity to do work. The other options confuse energy with other properties.

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As per your syllabus, what is the SI unit of ENERGY — the same as that of work?

  1. Joule (J)
  2. Pascal (Pa)
  3. Newton (N)
  4. Watt (W)
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Correct answer: A. Joule (J)

As per your syllabus, energy and work share the same SI unit, joule. Watt is power; newton is force; pascal is pressure.

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As per your syllabus, what is the WORK-ENERGY THEOREM?

  1. Work always equals the mass of the object
  2. Work is the same as power
  3. Work and energy are unrelated
  4. Work done on an object equals the change in its energy
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Correct answer: D. Work done on an object equals the change in its energy

As per your syllabus, Eq. 7.3, work done on an object = change in its energy. The other options misstate.

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