Some Natural Phenomena Test

Result

Some Natural Phenomena Test - 15

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Weekly Quiz Competition

Question 1
1 / -0

When a foil strips get touched by your hand, it loses charge to the Earth through your body. This process is also referred to as ________.

A
earthing

B
discharging

C
both A and B

D
none of the above

Solution

When we touch the strips, the charges get discharged through our body to the Earth and this process is known as earthing.
Question 2
1 / -0

_________ is commonly used to make a lightning conductor.

A
Carbon

B
Copper

C
Sodium

D
None of the above

Solution

Copper is a good conductor of electricity and is easily available. Hence it is chosen to make a lightning conductor.
Question 3
1 / -0

Which of the following is permissible during a thunderstorm?

A
Using a telephone having cord

B
Using a mobile phone

C
Taking a bath under running water

D
Standing under a tree

Solution

It is safe to use mobile phones or cordless phones as there is no chance of electric shock due to lightning during thunder-storm. Lightning can strike telephone cords, electrical wires, and metal pipes, so, contact with these should be avoided. It is also dangerous to stand under a tree, as it can be uprooted during a thunderstorm.
Question 4
1 / -0

The device that is used to protect buildings from the effects of lightning is:

A
transformer

B
transducer

C
electrode

D
lightning conductor

Solution

When a building is hit by lightning, the lightning conductor conducts all charges straight into the Earth thus protecting the building from damage.
Question 5
1 / -0

Why to squat low on the ground during thunderstorm?

A
You dont have any safe place

B
To make yourself smallest target

C
Your in open field

D
All of the above

Solution

When you dont have any safe places or you might be in open area then it is better to make yourself to smallest target for lightning & do not lie on ground.
Question 6
1 / -0

In the process of earthing, how does charges get discharged to Earth?

A
Through some conductor

B
Directly to the Earth

C
Through transformer

D
None of the above

Solution

Earthing is important for the protection of human life as well as property. For discharging of charges to the Earth some conductor is required, so that electric charges gets conducted into the Earth.
Question 7
1 / -0

When you are in open field or open area and do not have any safe places to hide during thunderstorm what should be done?

A
Make yourself smallest target.

B
Squat low on the ground.

C
Place your hands on your knees with head between the hands.

D
All of the above.

Solution

During lightning make yourself the smallest target by squat low on the ground and hands on your knees with your head between the hands. This is a safe position.
Question 8
1 / -0

Why bathing is avoided during thunderstorm?

A
To avoid contact with electric wires

B
To avoid contact with water

C
To avoid contact with running water

D
All of the above

Solution

During lightning contact with any such things or material which can carry charges are avoided. There might be chances that electric charge get leaked into water pipeline.
Question 9
1 / -0

Which of the following will not cause any harm to us during thunderstorm?

A
Using phones with cord.

B
Switching off electric light.

C
Plugging in electrical appliances.

D
All will cause harm.

Solution

During the lthunderstorm, switching off electric lights does not cause any harm to us. Using phones with cords and plugging in electrical appliances may prove dangerous due to short-circuiting if thunder strikes nearby.
Question 10
1 / -0

Why earthing is important?

A
To protect us from electrical shocks.

B
Transfers charge from a charged body to the Earth.

C
Both A and B.

D
Neither A nor B.

Solution

Earthing is used to protect you from an electric shock. It does this by providing a path (a protective conductor) for excess charge to flow to earth.

Earthing is the process of transferring charges to the Earth. During lightning, if earthing is not proper, we will get electrical shocks if lightning strikes because that excess charge due to lightning will not be able to go to ground and will cause an electric shock.

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Re-Attempt Weekly Quiz Competition

Some Natural Phenomena Test - 15

Result

Some Natural Phenomena Test - 15

Score

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SHARING IS CARING

Question 1

earthing

discharging

both A and B

none of the above

Solution

Question 2

Carbon

Copper

Sodium

None of the above

Solution

Question 3

Using a telephone having cord

Using a mobile phone

Taking a bath under running water

Standing under a tree

Solution

Question 4

transformer

transducer

electrode

lightning conductor

Solution

Question 5

You dont have any safe place

To make yourself smallest target

Your in open field

All of the above

Solution

Question 6

Through some conductor

Directly to the Earth

Through transformer

None of the above

Solution

Question 7

Make yourself smallest target.

Squat low on the ground.

Place your hands on your knees with head between the hands.

All of the above.

Solution

Question 8

To avoid contact with electric wires

To avoid contact with water

To avoid contact with running water

All of the above

Solution

Question 9

Using phones with cord.

Switching off electric light.

Plugging in electrical appliances.

All will cause harm.

Solution

Question 10

To protect us from electrical shocks.

Transfers charge from a charged body to the Earth.

Both A and B.

Neither A nor B.

Solution

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