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

1 N is equal to how many dynes?

• 10⁴

• 10⁵

• 10³

• 10⁶

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

• Conduction

• Convection

• Radiation

• All not required

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

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

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

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