Class X

 A wheelbarrow of mass 75 kg accelerates from rest and reaches speed of 10 m s-2 in 5 seconds. Its force is
  1. 150 N
  2. 375 N
  3. 750 N
  4. 3750 N
Kinetic component of internal energy is due to
  1. Vibration of matter
  2. Intermolecular forces
  3. Collision of particles
  4. Vibration of particles
Sound waves include
  1. Troughs and crests
  2. Compressions and crests
  3. Troughs and rarefactions
  4. Compressions and rarefactions
Diagram that shows magnitude and direction is termed as
  1. Scalar diagram
  2. Force diagram
  3. Dimer diagram
  4. Vector diagram
 Thermometer that can measure rapidly changing temperature is
  1. Mercury-in-glass thermometer
  2. Alcohol-in-glass thermometer
  3. Platinum resistance thermometer
  4. Thermocouple thermometer
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