NSO Level 1- Science Olympiad (SOF) Class 8: Questions 950 - 953 of 1076

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Question number: 950

» Chemical Effects of Electric Current

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MCQ▾

Question

When electricity passes through a conducting solution, the molecules dissociate into

Choices

Choice (4) Response

a.

Protons

b.

Atoms

c.

Ions

d.

Electron

Question number: 951

» Chemical Effects of Electric Current

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MCQ▾

Question

Aditya collected two cells, a bulb, two metal strips, some electric wire and some distilled water in a beaker. He has connected the provided items as given in the figure.

Image shows Conduction of electricity

Image Shows Conduction of Electricity

Image shows Conduction of electricity

He noticed that the bulb still did not glow. What should he do to make it glow?

Choices

Choice (4) Response

a.

Add some salt to the water

b.

Ensure the battery is expired or not

c.

Check for loose contact

d.

All of the above

Question number: 952

» Achiever's Section

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Appeared in Year: 2012

MCQ▾

Question

A car driver took a total of two hours to make a journey of . he had a coffee break of half an hour and spent a quarter of an hour stationary in a traffic jam. What was his average speed during the journey?

Choices

Choice (4) Response

a.

b.

c.

38kmh-1

d.

Question number: 953

» Some Natural Phenomena

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MCQ▾

Question

In winter season, a lady was sitting on a plastic chair wearing a silk sari. When she touched the handle of the steel locker, she experienced mild electric shock. The explanation of this statement would be

Choices

Choice (4) Response

a.

Plastic chair acquired electric charge by friction with silk

b.

The electric charge passed through her body to the handle and caused electric shock

c.

Silk acquired electric charge due to friction with plastic.

d.

Silk acquired electric charge due to friction with plastic and The electric charge passed through her body to the handle and caused electric shock.

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