Some Natural Phenomena | 63 plays

1.

Multiple Choice

1 min

1 pt

The process of transfer of charges from a charged object to the earth is called

earthing

lightning

oscillation motion

electron movement

2.

Multiple Choice

1 min

1 pt

The power of an earthquake is expressed on a scale called

seismic scale

iron scale

Richter scale

large scale

3.

Multiple Choice

1 min

1 pt

Which instrument is used to measure earthquake?

Richter scale

Seismograph

Polygraph

None of these

4.

Multiple Choice

1 min

1 pt

Which is not a natural phenomena?

Earthquakes

Cyclones

Lightning

Earthing

5.

Multiple Choice

1 min

1 pt

How many types of charges are gained by rubbing objects?

1

2

3

4

6.

Multiple Choice

1 min

1 pt

Where is the lightning rod attached to protect the building from lightning?

On the top of the building

On the bottom of the building

In the middle of the building

All of these

7.

Multiple Choice

1 min

1 pt

Lightning always follows

rain pour

a thunder

the easiest path

a straight path

8.

Multiple Choice

1 min

1 pt

Tsunami means

earthquake

floods

earthquake under the sea

eruption of volcano in a sea

9.

Multiple Choice

1 min

1 pt

The waves produced on the earth’s surface is called

seismic wave

longitudinal wave

Micro wave

Radio wave

10.

Multiple Choice

1 min

1 pt

Which is the surest test of charge on a body?

Repulsion

Lightning

Combustion

Insulation

11.

Multiple Choice

1 min

1 pt

Which of the following occurs during lightning?

Acid rain

Nitrogen fixation

Green house effect

Earthing

12.

Multiple Choice

1 min

1 pt

Which of the following can be charged with static electricity ?

Metal

alloy

Semiconductor

Insulator

13.

Multiple Choice

1 min

1 pt

Which of the following can be charged by rubbing?

Ebonite

Plastic

Amber

All the above

14.

Multiple Choice

1 min

1 pt

When two bodies are rubbed against each other, they acquire

equal and like charges

unequal and like charges

equal and unlike charges

unequal and unlike charges

15.

Multiple Choice

1 min

1 pt

It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as __________

Negative

Positive

Neutral

Can be any one

16.

Multiple Choice

1 min

1 pt

A device used to test whether an object is carrying charge or not is called ______.

Electrometer

Charge meter

Electroscope

Chargoscope

17.

Multiple Choice

1 min

1 pt

During lightning actually _____________ takes place

Electric discharge

Electric charging

Electric charge accumulation

All of the above

18.

Multiple Choice

1 min

1 pt

During a thunderstorm which action may be done?

Using Telephone having cord

Switching on / off electric lights

Using a mobile phone

None of the above

19.

Multiple Choice

1 min

1 pt

During thunderstorm it is safer to

Carry an open umbrella

Take shelter under short trees

Take shelter under tall trees

Stand in open fields

20.

Multiple Choice

1 min

1 pt

To protect tall buildings from the damage of lightning, what can be done?

Not to build tall buildings

Install lightning conductors

Install many TV antennas

Have a roof top garden with tall trees

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