10
Q:

# An object with a constant speed

 A) is not accelerated B) might be accelerated C) is always accelerated D) also has a constant velocity

Explanation:
Subject: Physics
Q:

1 horsepower = approximately _____ watts.

 A) 746 B) 764 C) 647 D) 674

Explanation:

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3 84
Q:

Which law of physics states that the force between the two electric charges reduces to a quarter of its former value when the distance between them is doubled?

 A) Coulomb’s Law B) Stefan's Law C) Pascal's Law D) Hooke's Law

Explanation:

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0 215
Q:

What is the unit of measure of a magnetic field?

 A) Cobalt B) Ohm C) Tesla D) Ampere

Explanation:

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2 191
Q:

_______ expansion makes the Eiffel Tower taller during summers.

 A) Thermal B) Chemical C) Gravitational D) Gradient

Explanation:

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3 1269
Q:

Georg Simon Ohm in whose honour we have the famous Ohm’s Law, hailed from which country?

 A) Russia B) Spain C) Poland D) Germany

Explanation:

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1 1342
Q:

Purpose of an optical filter is to

 A) reflect lights of different colours B) dispense light into component colours C) refract light of different colours D) transmit or absorb light of different colours

Answer & Explanation Answer: D) transmit or absorb light of different colours

Explanation:

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2 183
Q:

Which of the following statements is/are true about the speed of sound in different media at 25°C

A. In steel, the speed of sound is 5960 m/s
B. In nickel, the speed of sound is 6240 km/s

 A) Only A is true B) Neither A nor B i s true C) Both A and B are true D) Only B is true

Explanation:

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3 224
Q:

Momentum = ..............?

 A) Mass x Acceleration B) Mass / Volume C) Mass x Velocity D) Mass x Density