Physics Past Questions, Answers, And Explanations - Physics

Physics Questions

Question 3186:

WAEC 2004

Given that the gravitational constant is G. Newton's universal law of gravitation states that the force of attraction between two masses M₁ and M₂ separation by a distance r is

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A \(Gr^2 M_1M_2\)
B \(Gr M_1M_2\)
C \(\frac{GM_1 M_2}{r^2}\)
D \(\frac{GM_1 M_2}{r}\)

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Question 3187:

WAEC 2004

A charge of 1.6 x 10^-10C is placed in a uniform electric field of intensity 2.0 x 10⁵ NC^-1. calculate the magnitude of the electric force exerted on the change

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A 3.2 x 10⁵N
B 1.8 x 10⁵N
C 3.2 x 10^-5N
D 1.8 x 10^-5N

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Question 3188:

WAEC 2004

Which of the following statements is not correct?

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A A magnetic field is a region in which a magnetic force will be detected
B A magnetic line of force is a path along which a magnetic fields are scalar quantities it were free
C Magnetic fields are scalar quantities
D Neutral point are obtained where the earth's magnetic force is exactly equal and opposite to that due to a magnet

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Question 3189:

WAEC 2004

The main function of the mouth piece of a telephone is that it converts sound energy to

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