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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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roni6298 roni6298
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6 years ago

The internal combustion engine used in most cars has an average efficiency of about _______________ percent.
 
 


 
  Fill in the blank(s) with the appropriate word(s).

Question 2

The screw transfers rotational force into _______________ force.
 
 


 
  Fill in the blank(s) with the appropriate word(s).

Question 3

The lever uses a board or pipe resting on a pivot point known as a(n) _______________.
 
 


 
  Fill in the blank(s) with the appropriate word(s).

Question 4

One _______________ is the amount of energy required to apply the force of one newton on an object to move
 
  Fill in the blank(s) with the appropriate word(s).

Question 5

A simple machine that uses a fulcrum is called a(n) ____:
 
 

a. screw c. inclined plane
  b. wedge d. lever



Question 6

If you put 100 watts of power into a machine that produces 75 watts of power, the efficiency of the machine is ____ percent.
 
 

a. 25 c. 75
  b. 50 d. 125
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Replies
wrote...
#1
6 years ago
Answer to #1

twenty

Answer to #2

linear

Answer to #3

fulcrum

Answer to #4

joule

Answer to #5

D

Answer to #6

C
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