Physics Questions

Q:

When net torque is zero, __________ will be constant.

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

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Q:

One nanometer is equal to _____________ meters.

A) 10 raised to the power (­3) B) 10 raised to the power (­-6)
C) 10 raised to the power (­-9) D) 10 raised to the power (­-12)
 
Answer & Explanation Answer: C) 10 raised to the power (­-9)

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Q:

Due to an acceleration of 4 m/s2 the velocity of a body increases from 10 m/s to 30 m/s in a certain period. Find the displacement (in m) of the body in that period.

A) 200 B) 250
C) 100 D) 125
 
Answer & Explanation Answer: C) 100

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Q:

Which among the following determines the pitch of a sound?

A) Amplitude B) Frequency
C) Loudness D) Wavelength
 
Answer & Explanation Answer: B) Frequency

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Q:

An anemometer measures which of the following ?

A) Speed of light B) Speed of wind
C) Speed of water current D) Speed of satellites
 
Answer & Explanation Answer: B) Speed of wind

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Q:

The SI unit of G, the universal gravitation constant is ______________.

A) N m2 kg2 B) N m2 kg-2
C) N m-2 kg-2 D) N m-2 kg2
 
Answer & Explanation Answer: B) N m2 kg-2

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Q:

Formula for distance is

A) speed x time B) time / speed
C) speed x acceleration D) velocity / speed
 
Answer & Explanation Answer: A) speed x time

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Q:

Choose the most appropriate answer:Natural radioactivity was discovered by

A) Marie Curie B) Earnest Rutherford
C) Henry Bacquerel D) Enrico Fermi
 
Answer & Explanation Answer: C) Henry Bacquerel

Explanation:

Natural radioactivity was discovered by Henri Bacquerel.

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