Question 6 :
An earthquake measures 3 on the richer scale. Is it likely to cause much damage?
Question 7 :
Which states in India where earthquakes are more likely to strike?
Question 9 :
It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as ___________.
Question 10 :
The seismic waves are recorded by an instrument called the _________
Question 11 :
State true or false. The process of electric discharge cannot occur between clouds and the earth.
Question 12 :
What precautions should be taken if one is outside in a forest where no shelter is available and you are in an open field during a thunderstorm?
Question 13 :
What precautions should be taken if you are Inside the house during a thunderstorm?
Question 14 :
The strips carrying similar charges _________ each other and they become wide open.
Question 16 :
State true or false Earthquakes occur all the time all over the world.
Question 18 :
An electroscope is a device which is used to find if an object is ___________.
Question 19 :
An earthquake measures 3 on the richer scale. Would it be recorded by a seismograph?
Question 22 :
Earthing is provided in buildings to protect us from electrical shocks due to any leakage of ?
Question 23 :
The power of an earthquake is expressed in terms of a magnitude on a scale called
Question 24 :
What precautions would you take if lightning occurs while you are outside the house?
Question 26 :
What is caused by the accumulation of charges in the clouds?
Question 30 :
Give the precautions that you will take to protect yourself if earthquake strikes when you are inside the house.
Question 32 :
The boundaries of the plates are the weak zones where earthquakes are more likely to occur. The weak zones are also known as
Question 34 :
Electric current is to be passed from one body to another. For this purpose the two bodies must be joined by ___________.
Question 35 :
Which process is called when negative and positive charges meet, producing streaks of bright light and sound in clouds?
Question 36 :
A sudden shaking or trembling of the earth which lasts for a very short time is known as
Question 37 :
_________ and _________ charges meet, producing streaks of bright light and sound.
Question 39 :
The process of transferring of charge from a charged object to the earth is called
Question 40 :
Lightning conductor cannot protect a building from lightning. State TRUE or FALSE.
Question 42 :
What precautions should be taken if you are Inside the house during a earthquake?