Physics Past Questions, Answers, And Explanations - Physics

Physics Questions

Question 106:

JAMB 1980

A magnet is similar to a bipolar charged system in that

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A It consists of two opposite poles - the north and south poles
B The earth's magnetic field has a south pole near the geographical north pole and a north pole near the geographical south pole
C The force of attraction and repulsion between opposite and between like poles obeys a law for electrostatic charges
D A and B only
E A and C only

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Question 107:

JAMB 1980

In the study of physics, temperature and heat are often confused with each other. Which of the following statements correctly defines these two element?

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A Temperature is a measure of the average kinetic energy of the molecules of a substance
B Heat is a measure of the total kinetic energy of the molecules in a system
C Different materials require different amounts of heat to cause a given change in temperature
D All of the above
E A and B only

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Question 108:

JAMB 1980

A given quantity of heat increases the temperature of 150grams of water from 9oC to 15oC and increases the temperature of oil of 100grams from 9oC to 25oC. The ratio of the specific heat of oil to that of water is

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