Class X

 A pendulum bob moves at a speed of 2 m s-1 and mass of 0.5 kg, its Ek would be
  1. 1 J
  2. 0.25 J
  3. 0.5 J
  4. 2 J
Mass of wood is 2600 kg and volume is 5.2 m³, its density is
  1. 500 kg m-3
  2. 50 kg m-3
  3. 5000 kg m-3
  4. 2 × 10-3
 Thermocouple thermometer is
  1. less responsive
  2. Very responsive
  3. least responsive thermometer
  4. Unresponsive thermometer
Adding of two vectors to get a single vector is termed as
  1. Final vector
  2. Resultant vector
  3. Dominant vector
  4. Recessive vector
 In gases, particles are
  1. Closely packed
  2. Not free to move
  3. Regularly packed
  4. Far apart
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