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Q:

Blocking in experimental design is useful because it

A) keeps the experimenter from knowing which subjects are in the treatment group. B) prevents response bias from entering into the experiment.
C) gives the quarterback enough time to throw the ball. D) controls for multiple variables in an experiment.
 
Answer & Explanation Answer: D) controls for multiple variables in an experiment.

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Q:

If a body is whirled in a circle, then the work done on it ___.

A) is zero B) is positive
C) cannot be determined D) is negative
 
Answer & Explanation Answer: A) is zero

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Q:

What is the heat generated (in J) in a heating element of resistance 800 Ω when a current of 0.2 A passes through it for 40 seconds?

 

A) 6400   B) 1280  
C) 640   D) 3200
 
Answer & Explanation Answer: B) 1280  

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Q:

A unit of power is called a

A) Joule B) Pascal
C) Newton D) Watt
 
Answer & Explanation Answer: B) Pascal

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Q:

Boiling point of water is ___.

A) 210 deg F B) 212 deg F
C) 214 deg F D) 208 deg F
 
Answer & Explanation Answer: B) 212 deg F

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Filed Under: General Science
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Q:

When was the battle of Chillianwala fought?

A) 1865 B) 1892
C) 1849 D) 1856
 
Answer & Explanation Answer: C) 1849

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Filed Under: Indian History
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Q:

How many bones does a human baby have?

A) 206 B) 234
C) 270 D) 354
 
Answer & Explanation Answer: C) 270

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Filed Under: Biology
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Q:

___ is known as a disease mostly caused by occupational health hazards.

A) Syphilis B) Cirrhosis
C) Silicosis D) Parkinson's
 
Answer & Explanation Answer: C) Silicosis

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