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Q:

A solar eclipse occurs when

A) moon comes in the middle of sun and earth B) sun comes in the middle of moon and earth
C) earth comes in the middle of moon and sun D) All of the above
 
Answer & Explanation Answer: A) moon comes in the middle of sun and earth

Explanation:

A solar eclipse happens when the moon gets in the way of the sun's light and casts its shadow on Earth. Solar eclipses happen when the New Moon comes between the Sun and Earth and blocks out the Sun's rays.

 

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0 921
Q:

Energy possessed by an object by its position or configuration is called

A) Kinetic energy B) Nuclear energy
C) Potential energy D) Electrical energy
 
Answer & Explanation Answer: C) Potential energy

Explanation:
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0 920
Q:

During the free fall of the object, the decrease in potential energy, at any point in its path, appears as an equal amount of increase in _________________.

 

A) kinetic energy B) work done
C) heat energy D) gravitational force
 
Answer & Explanation Answer: A) kinetic energy

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3 918
Q:

An object of 5.0 kg is raised through a height of 2.0m. The work done in the process is

A) 49 J B) 10 J
C) 19.6 J D) 98 J
 
Answer & Explanation Answer: D) 98 J

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3 918
Q:

The energy released at the end of digestion is in the form of

A) thermal energy B) electric energy
C) kinetic energy D) chemical energy
 
Answer & Explanation Answer: D) chemical energy

Explanation:
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0 915
Q:

Two identical resistors of 20 ohm each are connected in parallel. This combination, in turn, is connected to a 10 ohm resister. The equivalent resistance of the combination will be

A) 30 ohm B) 10 ohm
C) 5 ohm D) 20 ohm
 
Answer & Explanation Answer: A) 30 ohm

Explanation:
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0 910
Q:

What does the kinetic energy (KE) of a moving body depend upon?

A) Mass & its position B) Weight & its position
C) Mass & acceleration D) Mass & velocity
 
Answer & Explanation Answer: D) Mass & velocity

Explanation:
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0 906
Q:

The capacity to do work is called

A) Pressure B) Force
C) Power D) Energy
 
Answer & Explanation Answer: D) Energy

Explanation:
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1 905