Physics Questions

Q:

Who proposed Continental drift theory?

A) Alfred Wegener B) Alfred Worwick
C) Alfred Hanks D) Alfred Mane
 
Answer & Explanation Answer: A) Alfred Wegener

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Q:

Why boiling point of water decreases at high altitudes?

A) Because of high temperature B) Because of low atmospheric pressure
C) Because of low temperature D) Because of high atmospheric pressure
 
Answer & Explanation Answer: B) Because of low atmospheric pressure

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Q:

The area under a Velocity-Time graph represents ______________.

A) distance B) acceleration
C) force D) momentum
 
Answer & Explanation Answer: A) distance

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Q:

Newton's first law is also known as _______.

A) Law of friction B) Law of moments
C) Law of Inertia D) Law of motion
 
Answer & Explanation Answer: C) Law of Inertia

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Q:

The laws which govern the motion of planets are called ___________________.

A) Newton's Laws B) Kepler's Laws
C) Avogadro's laws D) De Morgan's Laws
 
Answer & Explanation Answer: B) Kepler's Laws

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Q:

The material used in electric heater is

A) Tungsten B) Nichrome
C) Brass D) Steel
 
Answer & Explanation Answer: B) Nichrome

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Q:

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor. 

A) 2000 B) 500
C) 1000 D) 100
 
Answer & Explanation Answer: C) 1000

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Q:

______ is the perpendicular distance between point of application of force and axis of rotation.

A) Moment arm B) Moment of Inertia
C) Altitude D) Base
 
Answer & Explanation Answer: A) Moment arm

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