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Physics Past Questions and Answers

Neco Physics Questions

Question 161:

J.J. Thomson’s model of the atom was abandoned because ____________

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A It could not explain the scattering of alpha particles
B It did not account for the neutron
C It did not account for the size of the atom
D It was known as plum-pudding model
E The model was not similar to any observable phenomena

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Question 162:

Water in an open container boils at a lower temperature when heated at the top of a mountain than at sea-level because at the top of a mountain

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A Pressure is increased
B Pressure is reduced
C The rays of the sun add more heat to the water
D The saturation vapour pressure of water is higher than at sea-level
E The temperature is lower than at sea-level

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Question 163:

The volume of a given mass of gas is 40cm³ at 27° C. What is its volume at 90° C if its pressure remains constant?

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A 32.84cm³
B 40.02cm³
C 48.40cm³
D 57.44cm³
E 72.84cm³

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Question 164:

Which of the following statements is NOT true?

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A A lead-acid accumulator can deliver a large current because of its very large internal resistance.
B A secondary cell can be recharged.
C As a lead-acid accumulator is being charged, the density of the acid in it increases.
D The chemical action in a primary cell is irreversible.
E The conventional current in a circuit rlows from the positive to the negative terminal of the battery.

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Question 165:

A sheet of white paper viewed through blue glass appears blue because ____________

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A Blue is a primary colour
B The glass absorbs all colours except the blue colour
C The glass reflects blue colour
D The paper reflects blue colour only
E White light is easily absorbed by the glass

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