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Q:

One step in the production of hydroelectric power involves _____.

A) falling water that turns a turbine  B) electric current flowing across a dam
C) hot water from under the ground D) tides that pour through a barrier dam
 
Answer & Explanation Answer: A) falling water that turns a turbine 

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Q:

The acceleration due to gravity at the surface of the earth (mass M and radius R) is proportional to ___.

A) MR B) M/R2
C) M2/R D) M/R
 
Answer & Explanation Answer: B) M/R2

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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:

Who designed the world's lightest satellite 'Kalamsat', which NASA launched and set a new world record?

A) Riyaz Sharook B) Shawna Pandya
C) Rifath Sharook D) Madhav Dhekane
 
Answer & Explanation Answer: A) Riyaz Sharook

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Q:

Which is the brightest star in our night sky?

A) Canopus B) Sirius A
C) Vega D) Spica
 
Answer & Explanation Answer: B) Sirius A

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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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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:

The rate of change of velocity is called

A) Momentum B) Speed
C) Acceleration D) Force
 
Answer & Explanation Answer: C) Acceleration

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