An object of mass 10 kg is moving with velocity 5 m/s. Its kinetic energy is MCQ with Answer and Explanation
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Question #1
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The nucleus of an atom was discovered by
Question #2
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The amount of heat required to change the state of 1 kg of a substance from solid to liquid at its melting point without any change in temperature is called:
Correct Answer: Option B
Explanation:
The heat required to change a solid into a liquid at its melting point without a temperature rise is called the Latent Heat of Fusion. The word 'latent' means hidden, because this heat energy breaks intermolecular bonds to change the phase rather than increasing the kinetic energy (temperature) of the molecules.
The heat required to change a solid into a liquid at its melting point without a temperature rise is called the Latent Heat of Fusion. The word 'latent' means hidden, because this heat energy breaks intermolecular bonds to change the phase rather than increasing the kinetic energy (temperature) of the molecules.
Question #3
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A car of mass 1000 kg moves with velocity 20 m/s. Kinetic energy is
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