Physics
Grade-8
Easy
Question
In charging by induction the _________ and ________ of the body do not get affected.
- Mass, volume
- Mass, charge
- Mass, density
- Volume, charge
Hint:
Mass and charge
The correct answer is: Mass, charge
- In charging by induction the mass and charge of the body do not get affected.
- Induction charging is a charging method that charges an object without actually touching the object to any other charged object.
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When an uncharged body is brought near to charged body in the conduction, there is ______ flow.
When an uncharged body is brought near to charged body in the conduction, there is ______ flow.
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A metallic conductor has loosely bound electrons called free electrons. The metallic conductor is:
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Charging without physical contact is called _______.
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The transfer of charge in metals with physical contact is called _____.
The transfer of charge in metals with physical contact is called _____.
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An electroscope is used to__________.
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What is the nature of electrical charges generated by rubbing two objects?
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After charging by induction, the induced body remains:
After charging by induction, the induced body remains:
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When one item rubs against another, the object that acquires electrons
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In the vacuum distillation process, the boiling point of component of liquid which is to be distil out becomes:
In the vacuum distillation process, the boiling point of component of liquid which is to be distil out becomes:
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Study the following diagram which is the experimental set-up of some separation techniques.
Which of the following statement regarding this experiment is/ are correct?
(i). This method is used to separate the different gases from air.
(ii). It is used to separate the mixture of acetone and water
(iii). It is the based on principle of repetitive cooling and condensation of vapors.
(iv). This method can also be used to separate those components that have very high boiling points.
Study the following diagram which is the experimental set-up of some separation techniques.
Which of the following statement regarding this experiment is/ are correct?
(i). This method is used to separate the different gases from air.
(ii). It is used to separate the mixture of acetone and water
(iii). It is the based on principle of repetitive cooling and condensation of vapors.
(iv). This method can also be used to separate those components that have very high boiling points.
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Read the following paragraph and fill in the blanks by choosing the correct option.
When a crude oil(petroleum) is subjected to fractional distillation, The component (i)_______ out last. This component is used for making paints and surfacing roads. The another component which comes out at 40℃ is (ii)______ And is used for fuels in vehicles. The component which distil out at 330℃ is (iii)_____.
Read the following paragraph and fill in the blanks by choosing the correct option.
When a crude oil(petroleum) is subjected to fractional distillation, The component (i)_______ out last. This component is used for making paints and surfacing roads. The another component which comes out at 40℃ is (ii)______ And is used for fuels in vehicles. The component which distil out at 330℃ is (iii)_____.
ChemistryGrade-8
