Class X

Process in which thermal energy is transferred by means of current in medium in fluids is termed as
  1. Conduction
  2. Convection
  3. Radiation
  4. Conduction and Radiation
Electromagnetic waves that include light belong to
  1. Light spectrum
  2. Electronic spectrum
  3. Electromagnet group
  4. Electromagnetic spectrum
 A car of mass 1.5 tonnes travels at a constant speed of 40 km ⁄ h, calculate its kinetic energy in kJ.
  1. 9.259 kJ
  2. 92.59 kJ
  3. 925.9 kJ
  4. None of above
 SI unit for heat is
  1. Joules
  2. Pascal
  3. Ohms
  4. Amperes
Liquids have
  1. Fixed shape and volume
  2. Variable shape and volume
  3. Variable shape but fixed volume
  4. Fixed shape but variable volume
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