Work, Energy and Power-Potential Energy (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 1 - 5 of 11
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Question number: 1
» Work, Energy and Power » Potential Energy
Question
The potential energy between two atoms in a molecule is given by, where a and b are positive constant and x is the distance between the atoms. The atoms is an stable equilibrium, when-
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Question number: 2
» Work, Energy and Power » Potential Energy
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If g is the acceleration due to gravity on the earth’s surface, the gain in the potential energy of an object of mass m raised from surface of the earth to a height equal to radius R of the earth is - [M = mass of earth]
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Question number: 3
» Work, Energy and Power » Potential Energy
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A body of mass m moving with a velocity v 1 in the X-direction collides with another body of mass M moving in Y-direction with a velocity v 2. They coalesce into one body during collision. The magnitude and direction of the momentum of the final body, will be-
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Question number: 4
» Work, Energy and Power » Potential Energy
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A tennis ball dropped from a height of 2 m rebounds only 1.5 f meter after hitting the ground. What fraction of energy is lost in the impact?
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| Choice (4) | Response | |
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| a. | 1/2 |
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| b. | 1/8 |
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| c. | 1/4 |
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| d. | 1/16 |
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Question number: 5
» Work, Energy and Power » Potential Energy
Question
A tennis ball dropped from a height of 5 m rebounds only 2.5 f meter after hitting the ground. What fraction of energy is lost in the impact?
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| Choice (4) | Response | |
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| a. | 1.26 |
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| b. | 0.466 |
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| c. | 0.5 |
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| d. | 2.45 |
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