1 N is equal to how many dynes? from Science Science and the Lea

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Which of the following can be assessed when Geeta is using only MCQ as a tool to assess "Nutrition in Humans"?

  • Misconceptions related to food habits

  • Learner's ability to apply knowledge and prepare a role-play to present in the morning assembly

  • Learners' ability to comprehend the importance of components of food and write a long essay

  • Analytical ability to classify food items and make a poster


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2.

1 N is equal to how many dynes?

  • 104

  • 105

  • 103

  • 106


B.

105


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3.

Which mode of transportation of heat is essentially not required for the medium?

  • Conduction

  • Convection

  • Radiation

  • All not required


4.

The velocity of sound in air is taken as 332 m/s. If the pressure of a gas is taken double, then what will be the velocity of sound in air?

  • 996 m/s

  • 664 m/s

  • 166 m/s

  • 332 m/s


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5.

The escape velocity from the surface of the Earth is

  • 11.2 km/s

  • 11.2 m/s

  • 11.2 cm/s

  • 11.2 mm/s


6.

Which one of the following statements is true about the 'laws' and 'theories' in science?

  • Theories are found in biological sciences only and laws are found in physical sciences only.

  • Theories and laws are the same and perform the same function except that laws are briefer form of theories

  • Laws are generalized descriptions of the relationships among observable phenomena and theories are explanations for the observable phenomena

  • Theories become laws when validated


7.

Which one among the following situations gives the learners the best opportunity to 'discover knowledge'?

  • Students being instructed through 'team teaching' on 'materials of daily use'

  • Students undergoing an elaborate and detailed session of 'programmed instruction' on the topic 'components of food'

  • Students being first shown the demonstration of Archimedes Principle' followed by a detailed explanation

  • Students labeling the given materials as
    'conductors' and 'non-conductors' by
    placing them in a self-assembled closed electric
    circuit


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