Questions and Answers
What concept is closely related to 'work' according to the text?
Energy
Why do living beings and machines need energy?
To perform activities and work
What are examples of strenuous activities that require more energy according to the text?
Jumping, running, fighting
What is the source of energy for all living beings according to the text?
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Why do some engines require fuel like petrol and diesel?
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According to the scientific definition of work, which scenario does NOT involve work?
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Which of the following activities may NOT be considered as 'work' in day-to-day life?
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What determines whether an activity is considered 'work'?
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What is an example of an activity that involves 'work' based on the scientific definition?
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In what context do we define and use the term 'work' differently?
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