Class VIII

Instruments which are used to measure temperature are called
  1. barometer
  2. mercury
  3. spectrometer
  4. thermometer
Hotter will be object more will be heat
  1. conduction
  2. convection
  3. radiation
  4. convection currents
After cooling bimetallic strip bends
  1. upwards
  2. downwards
  3. straight
  4. inside
A solar panel is kept black surface so that it absorbs more
  1. heat
  2. water
  3. air
  4. oxygen
A form of energy which flows from hotter region towards cooler region n reach on same temperature is called
  1. conduction
  2. convection
  3. radiation
  4. heat
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