Q.1
What does the transfer of energy by conduction, convection and evaporation involve?
  • Radio waves
  • Particles
  • Sound waves
  • UV waves
Q.2
Which surface is the best reflector of heat?
  • Red surface
  • Black surface
  • Blue surface
  • Shiny white surface
Q.3
What kind of surfaces is heat radiation emitted from?
  • Shiny surfaces
  • Dark surfaces
  • All surfaces
  • Kitchen surfaces
Q.4
Which of the following surfaces is the best absorber of heat?
  • Shiny surface
  • Black surface
  • White surface
  • Red surface
Q.5
What does the rate at which an object transfers energy by heating depend on?
  • Surface area and volume
  • The material from which the object is made
  • The nature of the surface with which the object is in contact
  • All of the above
Q.6
What is evaporation?
  • The process during which fastest moving particles of a liquid escape from the liquid's surface
  • The vaporization of the entire mass of the liquid as heat energy is applied
  • It is the collective movement of molecules in liquids and gasses
  • High energy particles knock lower energy particles out of the liquid and into the air
Q.7
How does heat transfer through the vacuum of space?
  • By radiation
  • By conduction
  • By spacecraft
  • It doesn't
Q.8
Which of the following is one reason why metals are good conductors of heat?
  • They are shiny
  • They have free electrons
  • They have a high resistance
  • They are rigid
Q.9
Which sentence best describes how conduction works?
  • Conduction involves vibrating particles passing the heat energy along
  • The heat is radiated into the surroundings
  • Warm particles rise and cold particles fall
  • Particles do not make contact with each other but are heated individually via an external source
Q.10
What factor will cause an object to lose its heat energy the fastest?
  • Heating the object
  • A smaller temperature difference between the object and its surroundings
  • A larger temperature difference between the object and its surroundings
  • Encasing the object in a blanket
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