Why does a laboratory thermometer not have a kink?
  • To reduce expansion
  • To allow mercury to fall back freely
  • To increase accuracy
  • To prevent breaking
Which thermometer measures temperature without touching the body?
  • Mercury thermometer
  • Laboratory thermometer
  • Infrared thermometer
  • Alcohol thermometer
The lower fixed point of Celsius scale is based on
  • Boiling of water
  • Freezing of mercury
  • Melting of ice
  • Evaporation of water
Which factor does NOT affect body temperature?
  • Age
  • Time of day
  • Activity level
  • Colour of clothes
When temperature increases, particles of a substance
  • Stop moving
  • Move slower
  • Gain kinetic energy and move faster
  • Lose energy
Which scale starts at absolute zero?
  • Celsius
  • Fahrenheit
  • Kelvin
  • Clinical scale
Digital thermometers are preferred because they
  • Contain mercury
  • Are cheaper
  • Are safer and easier to read
  • Need no batteries
Which conversion formula is correct?
  • K = C − 273
  • C = K + 273
  • K = C + 273
  • F = C − 32
Sense of touch cannot be relied upon to judge temperature because
  • Water temperature changes quickly
  • Skin adapts to previous conditions
  • Objects absorb heat differently
  • Thermometers are inaccurate
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