Physics Questions

Q:

Consider a planet whose mass and radius are both twice the mass and radius of Earth. The acceleration due to gravity on the surface of the planet is 'n' times that on Earth. The value of n is:

 

A) 4 B) 1
C) 12 D) 2
 
Answer & Explanation Answer: C) 12

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Q:

Which of the following is NOT an example of potential energy?

A) Running water B) Water stored in a dam
C) A raised hammer D) A compressed spring
 
Answer & Explanation Answer: A) Running water

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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

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Q:

Kinetic energy is equal to

A) 1/2 mv2 B) mgh
C) mv D) Ma
 
Answer & Explanation Answer: A) 1/2 mv2

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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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Q:

Who does not the kinetic energy of an object increase with?

A) Friction B) Time
C) Mass D) Speed
 
Answer & Explanation Answer: D) Speed

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Q:

What is the measure of temperature considered as normal in human body?

A) 95 deg F B) 97 deg F
C) 98.6 deg F D) 96.8 deg F
 
Answer & Explanation Answer: C) 98.6 deg F

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Q:

Work done by an object on application of a force would be zero if the displacement of the object is:

 

A) negative B) Positive
C) neutral D) Zero
 
Answer & Explanation Answer: D) Zero

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