1) Digital thermometers do not use ______. a) zinc b) mercury c) silver 2) In a thermometer, when liquid gets heat, it _____ and when it is cooled down, it _____. a) expands, contracts b) contracts, expands c) expands, breaks 3) The SI unit of temperature is ______ a) Kelvin b) Kevin c) Kovin 4) A small change in the temperature causes change in of a liquid ________. a) colour b) volume c) shape 5) The coldest natural temperature ever recorded on earth is________ a) 178.35 K b) 174.85 K c) 178.45K 6) All clinical thermometers have a________ that prevents mercury from flowing back into the bulb. a) blink b) link c) kink 7) Before use, the mercury level in clinical thermometer should be below________ a) 53° C or 49° F b) 35° C or 94° F c) 39° C or 99° F 8) The freezing point of alcohol is less than________ a) -100°C b) -120°C c) 200°C 9) A clinical thermometer indicates temperatures from a minimum of ________ °F to a maximum of ___ °F. a) 94° F, 108° F b) 96° F, 118° F c) 34° F, 78° F 10) The temperature of the universe in the earliest moments after the Big Bang was ________ a) 10²³K b) 10³² M c) 10³² K 11) The hottest natural temperature ever recorded on earth is ________. a) 392.85K b) 592.85K c) 392.55K

HEAT AND TEMPERATURE 3

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