Some Natural Phenomena Test

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Some Natural Phenomena Test - 14

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Question 1
1 / -0

When a body gains electrons it acquires

A
Positive charge

B
Negative charge

C
Partially positive charge

D
Partially negative charge

Solution

When the body gains electrons it gets negatively charged, because the number of negative charges are more than the positive charges, so the body becomes negatively charged.
For example: Suppose a chlorine atom in which $$17$$ proton and $$17$$ electrons are present so it is in the neutral state. Now, if this chlorine atom gets one electron then it has total $$17$$ proton and $$18$$ electrons now $$17$$ electrons get neutral but $$1$$ electron remains that makes chlorine to negatively charge.
Question 2
1 / -0

When body losses electrons it acquires:

A
positive charge

B
negative charge

C
partially positive charge

D
partially negative charge

Solution

Electrons itself is a negatively charged particle. When body losses electrons, it becomes electron deficient and acquires positive charge.
Question 3
1 / -0

When a charge passes from a charged object to earth, the process is called:

A
Earthing

B
Lightning

C
Electroscope

D
None of these

Solution

The process of transferring charge from a charged object to the earth is called earthing.
An electroscope is a device used to detect whether a body is charged or not.
The process of an electric discharge between clouds and the earth or between different clouds causes lightning.
Question 4
1 / -0

What will be the nature of charge on the uncharged aluminium foil strip of electroscope when a negatively charged body is brought in contact with it?

A
Positive

B
Neutral

C
Negative

D
Unpredictable

Solution

The nature of charge on the foil strip, when a negatively charged body is brought in contact to it, will be negative. Due to conduction, the negative charge of the body is transferred to the uncharged aluminium foil.
Question 5
1 / -0

If a object is charged by contact, it will acquire:

A
opposite charge.

B
negative charge always.

C
same charge as the charged body.

D
positive charge always.

Solution

If an object is charged by contact, it acquires the same charge as the charged object.
Question 6
1 / -0

What will be the nature of charge on the metal paper clip of electroscope when a negatively charged body is brought in contact with it?

A
Positive

B
Negative

C
Partially positive

D
None of the above

Solution

The nature of charge will be negative. When a negatively charged body come in context with uncharged metal paper clip then some amount of negative change will transfer from changed body to metal clip. This phenomenon of change transfer is called Conduction.
Question 7
1 / -0

When a neutral body is charged by bringing it near to the charged body, the process is called :

A
charging by conduction.

B
charging by induction.

C
charging by rubbing.

D
all of the above.

Solution

When a charged body is brought near, but not in contact, of an uncharged body, the later gets oppositely charged. This method is called charging by induction.
Question 8
1 / -0

What will be the nature of charge on the metal paper clip of electroscope when a positively charged body is brought in contact with it?

A
Positive

B
Negative

C
Partially negative

D
None of the above

Solution

In a given activity, one positively charged body is coming in contact with uncharged metal paper clip. in this process, positive charge will transfer from charged body to metal paper clip by conduction.
Question 9
1 / -0

The nature of charge on the object can be detected by:

A
Microscope

B
Electroscope

C
Electrometer

D
Telescope

Solution

A pre-charged electroscope detects the nature of charge on a charged body.
Question 10
1 / -0

The process of transferring of charge from a charged object to the Earth is called:

A
lightning

B
thundering

C
earthing

D
all of the above

Solution

When a charged object comes in contact with the Earth, the charges flow into the Earth and the body gets discharged. This process is called earthing.

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Some Natural Phenomena Test - 14

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Some Natural Phenomena Test - 14

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SHARING IS CARING

Question 1

Positive charge

Negative charge

Partially positive charge

Partially negative charge

Solution

Question 2

positive charge

negative charge

partially positive charge

partially negative charge

Solution

Question 3

Earthing

Lightning

Electroscope

None of these

Solution

Question 4

Positive

Neutral

Negative

Unpredictable

Solution

Question 5

opposite charge.

negative charge always.

same charge as the charged body.

positive charge always.

Solution

Question 6

Positive

Negative

Partially positive

None of the above

Solution

Question 7

charging by conduction.

charging by induction.

charging by rubbing.

all of the above.

Solution

Question 8

Positive

Negative

Partially negative

None of the above

Solution

Question 9

Microscope

Electroscope

Electrometer

Telescope

Solution

Question 10

lightning

thundering

earthing

all of the above

Solution

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