Unit - 8.1 Static Electricity - ICSE STD 8 PHYSICS Questions

Q 1MCQ1 Mark

Aluminium metal is:

A
magnetic substance
B
bad conductor of heat
✓
good conductor of electricity
D
bad conductor of electricity

Answer: C.

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Q 2MCQ1 Mark

When a negatively charged ebonite rod is brought near a negatively charged and freely suspended ball, then the ball:

✓
gets repelled
B
gets attracted
C
is not affected
D
none of these

Answer: A.

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Q 3MCQ1 Mark

If a material loses electrons from its outermost shell, the material acquires a :

A
negative charge
✓
positive charge
C
remains neutral
D
none of these

Answer: B.

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Q 4MCQ1 Mark

When a silk handkerchief is rubbed with glass the charge acquired by silk is:

A
positive
✓
negative
C
neutral
D
none of these

Answer: B.

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Q 5MCQ1 Mark

When an ebonite rod is rubbed with cat’s skin, the cat’s skin develops a charge which is:

✓
positive
B
negative
C
neutral
D
none of these

Answer: A.

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Q 6[1 Mark Question Answer]1 Mark

What are insulators? Define on the basis of atomic model. Name six insulators.

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Q 7[1 Mark Question Answer]1 Mark

On the basis of electron transfer, explain, why an ebonite rod gets negatively charged on rubbing with cat’s skin.

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Q 8[1 Mark Question Answer]1 Mark

On the basis of electron transfer, explain, why a glass rod gets positively charged on rubbing with silk.

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Q 9[1 Mark Question Answer]1 Mark

State the charges present on the ebonite rod and the cat’s skin on rubbing with each other.

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Q 10[1 Mark Question Answer]1 Mark

What kind of charges are produced on the glass rod and the silk, when rubbed with each other.

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Q 11[2 Mark Question Answer]2 Marks

What are conductors? Define on the basis of atomic model. Give four examples of different classes of conductors.

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Q 12[2 Mark Question Answer]2 Marks

"Briefly describe Rutherford’s structure of atom."

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Q 13[5 Mark Question Answer]5 Marks

Describe an experiment to show:
(a) like charges repel each other
(b) unlike charges attract each other

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Q 14fill in the blanks.1 Mark

(protons, positive)
In an atom of an element, the number of electrons is equal to the number of _______________.

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Q 15fill in the blanks.1 Mark

(attract, bound)
The electrons revolving close to the nucleus of an atom are called _______________ electrons.

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Q 16fill in the blanks.1 Mark

(free, protons)
It is the _______________ electrons in the outermost shell of an atom, which are responsible for electrification

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Q 17fill in the blanks.1 Mark

(repel, free)
Similar charges _______________ each other whereas opposite charges _______________ each other.

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Q 18fill in the blanks.1 Mark

(protons, positive)
A cat’s skin acquires _______________ charge when rubbed with ebonite rod.

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Q 19TRUE / FALSE1 Mark

Alcohol and ether are conducting liquids.

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Q 20TRUE / FALSE1 Mark

The sum total of the number of electrons in a system can change.

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Q 21TRUE / FALSE1 Mark

Similar charges attract each other.

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Q 22TRUE / FALSE1 Mark

Good conductors have excess of free electrons.

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Q 23TRUE / FALSE1 Mark

The fur gets positively charged because of deficiency of electrons.

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Q 24Match the following.5 Marks

Column A	Column B
1. A charge produced on a body due to the deficiency of electrons.	(a) Negative charge
2. A charge produced on a body due to excess of electrons.	(b) Free electrons
3. Surest test for electrification.	(c) Silver
4. The electrons in the outermost shell of an atom.	(d) Positive charge
5. A material which is best conductor of electricity.	(e) Repulsion

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Unit - 8.1 Static Electricity question types

Unit - 8.1 Static Electricity questions

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Unit - 8.1 Static Electricity PHYSICS - Unit - 8.1 Static Electricity

Unit - 8.1 Static Electricity question types

Unit - 8.1 Static Electricity questions

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