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Chapter 6: Thermal Energy

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

 
   
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