Physics
Grade-9
Easy
Question
An electron generally exists _______ the __________of an atom.
- Inside, nucleus
- Outside, nucleus
- Inside and outside, the nucleus
- Nowhere in nucleus
The correct answers are: Inside, nucleus, Outside, nucleus
Protons and neutrons exist inside the nucleus of an atom. An electron generally exists outside the nucleus of an atom.
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What is the nature of electrical charges generated by rubbing two objects?
What is the nature of electrical charges generated by rubbing two objects?
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An electron has ___________ charge.
An electron has ___________ charge.
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Negative charge attracts ________ charge.
Negative charge attracts ________ charge.
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Consider the following statements and select the correct option which correctly identifies true (T) and false (F).
(i) A charged object can attract something that is uncharged.
(ii) An atom that gains electrons becomes positively charged.
(iii) Charges can be transferred from one body to another.
Consider the following statements and select the correct option which correctly identifies true (T) and false (F).
(i) A charged object can attract something that is uncharged.
(ii) An atom that gains electrons becomes positively charged.
(iii) Charges can be transferred from one body to another.
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As per the nature of electrostatic forces:
As per the nature of electrostatic forces:
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If an object is rubbed with another object, the object which gains electrons
If an object is rubbed with another object, the object which gains electrons
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A/an ___________ can be transferred from one body to another.
A/an ___________ can be transferred from one body to another.
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Which one of the following is a negatively charged particle?
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Which fundamental particle in an atom has no charge?
Which fundamental particle in an atom has no charge?
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What is the nature of the force which is experienced between an electron and a proton?
What is the nature of the force which is experienced between an electron and a proton?
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An electrically neutral material has __________ number of positive and negative charges.
An electrically neutral material has __________ number of positive and negative charges.
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Unlike charges _______ each other.
Unlike charges _______ each other.
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An atom has ___________ charge.
An atom has ___________ charge.
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Which of the following cannot be a heat reservoir?
Which of the following cannot be a heat reservoir?
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During a thermodynamic process, 30 joules of heat are added to a gas while 25 joules of work are done by the gas. The change in internal energy of a system is ____ J.
During a thermodynamic process, 30 joules of heat are added to a gas while 25 joules of work are done by the gas. The change in internal energy of a system is ____ J.
PhysicsGrade-9
