Science Home Product Information Site Map Search Contact Us   Glencoe Online
Quizzes Quiz
 
Chapter 18: Mirrors and Lenses

Practice Test
      
  1.A concave lens is also known as a __________ lens.  
  a.   diverging  
  b.   concave  
  c.   converging  
  d.   plane  
  Hint    
      
  2.A __________ image is formed when light rays converge and pass through the image.  
  a.   virtual  
  b.   critical  
  c.   real  
  d.   convex  
  Hint    
      
  3.The image produced by the ocular of a microscope is a(n) __________.  
  a.   virtual image  
  b.   real image  
  c.   reflected image  
  d.   object image  
  Hint    
      
  4.__________ is located behind a convex mirror.  
  a.   A ray  
  b.   The object  
  c.   The focal point  
  d.   A real image  
  Hint    
      
  5.Why are bigger lenses better for observing dim objects?  
  a.   they have better curvatures  
  b.   they collect more light  
  c.   they refract light less  
  d.   they reduce spherical aberration  
  Hint    
      
  6.You are standing in front of a bathroom mirror. Where is your image located?  
  a.   behind the mirror  
  b.   between you and the mirror  
  c.   in front of the mirror  
  d.   behind you  
  Hint    
      
  7.In a ray tracing diagram, two rays must pass through the __________ to determine the location of the image.  
  a.   focal point  
  b.   lens edge  
  c.   object  
  d.   image  
  Hint    
      
  8.The distance from the focal point to the mirror is the __________.  
  a.   focal distance  
  b.   focal length  
  c.   foci  
  d.   focus point  
  Hint    
      
  9.__________ single lenses have chromatic aberration  
  a.   Only parabolic  
  b.   Only concave  
  c.   Only convex  
  d.   All  
  Hint    
      
  10.The focal length of a concave lens is __________.  
  a.   positive  
  b.   negative  
  c.   reduced  
  d.   magnified  
  Hint    

 
   
McGraw-Hill / Glencoe
The McGraw-Hill Companies