JAMB Physics Past Questions & Answers - Page 32

156.

A body of mass 2 kg is released from a point 100 m above the ground. Calculate its kinetic energy 80m from the point of release.

1600 J

900 J

600 J

200 J

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Correct answer is A

No explanation has been provided for this answer.

157.

Which of the following instruments can be used to compare the magnitudes of charges on two given bodies?

Electrophorus

Ebonite rod

Gold-leaf electroscope

Proof planes

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Correct answer is C

No explanation has been provided for this answer.

158.

The induced current in a coil always flows in a direction so as to oppose the change that causes it. This statement is known as

Coulomb's law

Lenz's law

Faraday's law

Ampere's law

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Correct answer is B

No explanation has been provided for this answer.

159.

In an elastic collision, momentum is conserved as well as well as?

velocity

kinetic energy

potential energy

speed

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Correct answer is B

An elastic collision is an encounter (collision) between two bodies in which the total kinetic energy of the two bodies remains the same.

160.

Which of the following quantities is a vector?

Volume

Momentum

Energy

Speed

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Correct answer is B

No explanation has been provided for this answer.

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