1. Name two destructive phenomena.
2. What is static electricity?
3. What are charged objects?
4. When you are in open where should you take shelter?
5. Define lightening conductor.
6. Who established relation between sparks produced by amber and the thunderstorm?
7. What is electric discharge? How does it occur?
8. Name the regions of the earth more prone to earthquakes.
9. Explain working mechanism of thunderstorm.
10. What is a seismograph? How does it work?
Answers
Answer:
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Explanation:
a stationary electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair
Charged objects have an imbalance of charge - either more negative electrons than positive protons or vice versa.
Do not take shelter in open garages, storage sheds, etc. ... As we know that buses are made up of metals from outside and hence when ...
a metal rod or wire fixed to an exposed part of a building or other tall structure to divert lightning harmlessly into the ground.
Benjamin Franklin
Electric discharge refers to the flow of electricity or electric charge through a medium. The medium may be a solid, a liquid or a gas. When two points of different electrical potential make contact in the medium in which they are placed, it causes an electric
The world's greatest earthquake belt, the circum-Pacific seismic belt, is found along the rim of the Pacific Ocean, where about 81 percent of our planet's largest earthquakes occur. ...
Thunderstorm is characterised by presence of lightning and thunder. ... Thunderstorms result from the rapid upward movement of warm, moist air, sometimes along a front. On reaching the sky and further moving higher, cools and condenses and forms cloud. These clouds can reach upto a height of 20 kilometres.
A seismograph is a device for measuring the movement of the earth, and consists of a ground- motion detection sensor, called a seismometer, coupled with a recording system. Seismographs operate on the principle of inertia. ... Modern research seismometers are electronic, and detect and record motions in all directions.