NSO Level 1- Science Olympiad (SOF) Class 8: Questions 1018 - 1021 of 1175

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Question 1018

Question

MCQ▾

Identify the things, which can easily be charged by friction.

Choices

Choice (4)Response

a.

A plastic scale

b.

An iron scale

c.

A steel spoon

d.

A copper rod

Question 1019

Question

MCQ▾

Sunita knows that when a glass rod is rubbed with a piece of silk cloth, glass acquires positive charge while the cloth acquires negative charge. She has collected some objects, which are charged by friction. She wants to know the charges acquired by the objects. The steps she could follow would be given here. Arrange them in the correct order.

1. If the object is repelled, the object acquires positive charge.

2. Bring the charged object near the glass rod.

3. If the object is attracted, the object acquires negative charge.

4. Rub a glass rod with a piece of silk cloth.

Choices

Choice (4)Response

a.

1,4, 3,2

b.

1,2, 4,3

c.

4,2, 3,1

d.

4,2, 1,3

Question 1020

Question

MCQ▾

The process of transferring charge from a charged object to another object can be done using

Choices

Choice (4)Response

a.

Any object

b.

An electric conductor

c.

An electric insulator

d.

All of the above

Question 1021

Question

MCQ▾

Find out the poor conductor of electricity from the following options

Choices

Choice (4)Response

a.

Plastic

b.

Steel

c.

Aluminium

d.

None of the above

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