Physics Questions

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

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Q:

The capacity to do work is called

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

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Q:

Calculate the current flowing through a resistor of 10 ohm when a potential difference of 140 v is applied across it.

A) 14 amp B) 140 amp
C) 1400 amp D) 1.4 amp
 
Answer & Explanation Answer: A) 14 amp

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Q:

Which of the following is used to detect current in a circuit?

A) Galvanometer B) Anemometer
C) Barometer D) Lactometer
 
Answer & Explanation Answer: A) Galvanometer

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Q:

Which of the following instruments is used to measure electric current?

A) Rheostat B) Voltmeter
C) Ammeter D) Galvanometer
 
Answer & Explanation Answer: C) Ammeter

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Q:

What is the range of frequencies of sound waves audible to human beings?

A) 16kHz to 200kHz B) 16Hz to 16kHz
C) 16Hz to 20kHz D) 14Hz to 20kHz
 
Answer & Explanation Answer: C) 16Hz to 20kHz

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Q:

Why does a sprinter keep running even after crossing the finishing line?

A) He wants to make sure that he crosses the line B) Inertia of rest takes some time to make him stop
C) Inertia of motion keeps him moving D) Friction between his shoes and the ground causes him to move beyond the line
 
Answer & Explanation Answer: C) Inertia of motion keeps him moving

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Q:

What is the upward force exerted by water called?

A) Density B) Buoyant force
C) Gravitation D) Friction
 
Answer & Explanation Answer: B) Buoyant force

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