Some Natural Phenomena Test

Result

Some Natural Phenomena Test - 31

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

An ebonite rod is rubbed with fur. The charge on the ebonite rod is ______ and the charge on the fur is _______.

A
Negative, Positive

B
Positive, Negative

C
Negative, Negative

D
Positive, Positive

Solution

When an ebonite rod is rubbed with fur, it acquires a small charge.
An ebonite rod is rubbed with fur. The charge on the ebonite rod is negative and the charge on the fur is positive.
Question 2
1 / -0

What is the cause for the streaks of bright light and sound produced during lightning?

A
Meeting of positive charges

B
Meeting of negative charges

C
Meeting of like electric charges

D
Meeting of unlike electric charges

Solution
Question 3
1 / -0

During the thunderstorm, ________ move upwards while ________ move downards.

A
Water droplets, air currents

B
Air currents, charges

C
Air currents, water droplets

D
Water droplets, charges

Solution

During the development of a thunderstorm, the air currents move upward while the water droplets move downward, hence option $$C$$ is correct.
Question 4
1 / -0

Electric charges formed by rubbing are _____.

A
moving

B
static

C
dynamic

D
none of these

Solution

When two bodies rub with each other then electron get transferred from one to other. Body on which charge will accumulate become negative charged . And other will be positively charged. Nature of these charge is static.
Henge charge developed by rubbing is static.
Question 5
1 / -0

Choose the correct option that shows the rod and fur after charging

A

B

C

D
Question 6
1 / -0

Lightning is caused in the atmosphere primarily due to

A
Opposite charges accumulation at edges of a cloud.

B
Discharge between two similarly charged clouds.

C
Discharge between one charged and one neutral cloud.

D
None of these

Solution

Lightning is caused in the atmosphere because opposite charges accumulate at edges of a cloud.Which results in electric discharge between two oppositely charged clouds.
Question 7
1 / -0

What is a positive charge?

A
The charge acquired by a glass rod when it is rubbed with silk

B
The charge acquired by silk when it is rubbed with a glass rod

C
The charge acquired by plastic straw when it is rubbed with a silk

D
None of these

Solution

It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as positive, hence option $$A$$ is correct.
Question 8
1 / -0

Why is Earthing done in buildings?

A
To protect us from electric shocks

B
To give extra strength to the building

C
To transfer extra current to air

D
None of these

Solution

Earthing is provided in buildings to protect us from electrical shocks due to any leakage of electrical current, hence option $$A$$ is correct.
Question 9
1 / -0

In an electroscope, if aluminium strips are replaced by plastic strips, and a charged object is touched with the metal top of the electroscope:

A
the plastic strips will diverge

B
the plastic strips will not diverge

C
one strip will move away while other will remain
same.

D
the plastic strips will come more closer.

Solution
Question 10
1 / -0

How does charges separate during a thunderstorm?

A
Due to rubbing of air particles

B
Due to movement of air

C
Due to movement of air current and water droplets

D
None of these

Solution

The rigorous movement of air currents upwards and water droplets downards causes the charges to separate, hence option $$C$$ is correct.