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Introduction
Practice Questions

1 .       A kilogram is [Hint]

 
 
 
 


2 .       A centimeter is [Hint]

 
 
 
 


3 .       A megawatt is [Hint]

 
 
 
 


4 .       A nanosecond is [Hint]

 
 
 
 


5 .       A kilometer is [Hint]

 
 
 
 


6 .       All of the following are base units of the SI system except [Hint]

 
 
 
 


7 .       The SI prefix for 10-12 is [Hint]

 
 
 
 


8 .       Given (1 angstrom unit = 10-10 m) and (1 fermi = 10-15 m), what is the relationship between these units? [Hint]

 
 
 
 


9 .       Convert 0.75 kilometers to meters. [Hint]

 
 
 
 


10 .       Convert 0.0215 m to mm. [Hint]

 
 
 
 


11 .       Add 321.475, 42.500, and 2.25, and round properly. [Hint]

 
 
 
 


12 .       Multiply 12.75 times 4.375, and round properly. [Hint]

 
 
 
 


13 .       How many common houseflies can fit one layer deep on a 3-inch by 5-inch card (to one significant figure)? [Hint]

 
 
 
 


14 .       What is the mass of a common housefly? [Hint]

 
 
 
 


15 .       What is the speed, to one significant figure, of a common housefly in ordinary flight? [Hint]

 
 
 
 


16 .       The number 9452 in scientific notation is [Hint]

 
 
 
 


17 .       The number .0000475 in scientific notation is [Hint]

 
 
 
 


18 .       What does 1.23 + 2.50 x 10-3 equal? [Hint]

 
 
 
 


19 .       The volume of a sphere of radius R is [Hint]

 
 
 
 


20 .       The surface area of a sphere of radius R is [Hint]

 
 
 
 


21 .       The area of a circle of radius R is [Hint]

 
 
 
 


22 .       The circumference of a circle of radius R is [Hint]

 
 
 
 


23 .       The diagonal of a square 2.0 meters on a side is [Hint]

 
 
 
 


24 .       The area of a right triangle of base, b, and height, h, is [Hint]

 
 
 
 


25 .       A 10 L container has a volume, expressed in m3, of [Hint]

 
 
 
 






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