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Chapter 6: Thermal Energy

Practice Test
      
  1.How does a vacuum bottle minimize heat transfer?  
  a.   Inner glass bottles minimize conduction.  
  b.   Reflective coating inside the bottle minimizes radiation.  
  c.   An inner vacuum in the bottle prevents convection and conduction.  
  d.   All of the above.  
  Hint    
      
  2.What temperature is the boiling point of water on the Celsius scale.  
  a.   100°C  
  b.   212°C  
  c.   32°C  
  d.   0°C  
  Hint    
      
  3.Who is credited with the invention of the modern liquid-in-glass thermometer?  
  a.   Celsius  
  b.   Fahrenheit  
  c.   Galileo  
  d.   Kelvin  
  Hint    
      
  4.What means of heat transfer does not require a medium?  
  a.   convection  
  b.   All means of heat transfer require a medium.  
  c.   radiation  
  d.   conduction  
  Hint    
      
  5.What material property is important in refrigeration?  
  a.   When a gas is compressed, it gains thermal energy.  
  b.   Liquids evaporate more as they become warmer.  
  c.   radiation  
  d.   All of the above.  
  Hint    
      
  6.What is latent heat?  
  a.   heat that is not measurable  
  b.   Liquids evaporate more as they become warmer.  
  c.   radiation  
  d.   All of the above.  
  Hint    
      
  7.How is thermal energy transferred from one object to another?  
  a.   Transfer of thermal energy continues until objects are in thermal equilibrium.  
  b.   Thermal energy is transferred form something of higher temperature to something of lower temperature.  
  c.   Heat moves from a warm object to a cold object.  
  d.   All of the above.  
  Hint    
      
  8.What can be said of two objects that are in thermal equilibrium?  
  a.   The objects have the same amount of potential energy.  
  b.   Heat energy is in transit between the objects.  
  c.   Heat moves from a warm object to a cold object.  
  d.   All of the above.  
  Hint    
      
  9.What is the term for heat moving through a material or from one material to another?  
  a.   conduction  
  b.   convention  
  c.   temperature  
  d.   radiation  
  Hint    
      
  10.What is heat?  
  a.   the amount of energy required to change the physical state of a material  
  b.   convention  
  c.   temperature  
  d.   All of the above.  
  Hint    
      
  11.What is the term for heat transfer by motion of a heat-carrying medium?  
  a.   convection  
  b.   conduction  
  c.   radiation  
  d.   temperature  
  Hint    
      
  12.What means of heat transfer is thought to be the driving mechanism of plate tectonics?  
  a.   convection  
  b.   volcanoes  
  c.   radiation  
  d.   conduction  
  Hint    
      
  13.How does heat produce work in an automobile engine?  
  a.   Heat production by the engine expands gas, which forces the pistons to move.  
  b.   Heat produced by the engine is used to pump compressed air.  
  c.   Friction in the engine produces heat.  
  d.   All of the above.  
  Hint    
      
  14.Why are gasoline engines so inefficient?  
  a.   because the world is quickly running out of oil, which is used to manufacture gasoline  
  b.   because cars are heavy and therefore difficult to move  
  c.   because most of the heat produced just makes the car warmer and does not work  
  d.   because exhaust from gasoline engines damages the environment  
  Hint    
      
  15.What is a potential environmental problems related to thermal pollution?  
  a.   introduction of new species  
  b.   Increased temperature of water may make it difficult for fish to breathe.  
  c.   eutrophication of a body of water  
  d.   All of the above.  
  Hint    

 
   
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