1) The instruments which are used to measure temperature are called a. barometer b. mercury c. spectrometer d. thermometer
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2) If one end of metal rod is heated the whole rod becomes hot due to a. conduction b. convection c. radiation d. expansion
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3) When the substance cool off there is a decrease in a. size of substance b. vibrations c. temperature d. all of them
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4) A metal ball which is passing through metal ring will not pass after a. heating b. freezing c. constant conditions d. accelerating
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5) The expansion and contraction among solid, liquids and gases the one which has greater tendency to expand is a. solid b. liquid c. gas d. molten
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6) Dull and black surfaces are heat's good a. radiator b. conductors c. insulators d. convectors
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7) The poor conductors of heat are also termed as a. heat insulators b. thermal insulators c. both a and b d. heat conductors
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8) A breeze which is produced at night time when land loses more heat quickly is a. land breeze b. sea breeze c. sand storm d. thunderstorm
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9) The measure of hotness of an object is known as a. volume b. density c. temperature d. heat
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10) When energy is passed from one particle to another through a medium is called a. conduction b. convection c. radiation d. expansion
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11) When a substance gains heat the temperature a. increases b. decreases c. remain same d. stabilize
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12) Heat gain causes a metal to a. expand b. contract c. shrink d. stable
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13) The flow of cool air from the sea towards land produces a a. land breeze b. sea breeze c. sand storm d. thunderstorm
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14) Vacuum is a a. conductor b. insulator c. both a and b d. best conductor
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