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NTS - NAT ICS Test - Physics - Work and Energy - Quiz 2

Practice 10 high yield MCQs on Physics from Chapter Work and Energy for NAT ICS Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 2 of the series.

11. What is potential energy?



12. What is the potential energy of a 5 kg mass at height 10 m? (Take g=10 m/s²)



13. What does the law of conservation of energy state?



14. What remains constant in the absence of external forces?



15. What happens to energy when a ball is thrown upward?



16. What is the formula for efficiency?



17. What is the efficiency of a machine with output work 80 J and input work 100 J?



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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