Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.
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- How far are we from the lightning strike if 5 seconds elapse between seeing the flash and hearing the thunder?
- Who was the first to prove that clouds were electrically charged?
- Who was the god of sky and thunder in Greek mythology?
- What is formed in the air during a lightning strike?
- How many lightning flashes occur annually in the Earth's atmosphere?
- In the temperate zones, in which season do most lightning strikes occur?
- Which statement is true of cloud-to-ground lightning?
- What causes thunder according to modern science?
- What is true of storm clouds?
- Which force controls the motion of the ice crystals in the storm cloud?
- What is ionisation?
- To what temperature can a bolt of lightning heat up the surrounding air?
- Which statement is true?
- Which statement is false?
- Where is it safe to stay during a lightning storm?
- What property is characteristic of a lightning conductor?
- Which one is a light phenomenon occurring above the clouds?
Capacitors store electrical energy in the form of electric charge.
Evaporating surface water forms clouds of various shapes from which water falls back to the surface as precipitation.
The most important types of local winds are the sea-land breeze, the mountain-valley breeze as well as the downslope winds.
This animation demonstrates instruments used to examine atmospheric phenomena.
Cyclones are large areas of circulating air with clouds and precipitation being formed in its centre.
In summer, monsoon winds bring heavy rainfall from the ocean to the continent.
This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...
Water on Earth is in a continuous state of change. The water cycle includes processes such as evaporation, precipitation, melting and freezing.
Short-lived but extremely powerful tornadoes can cause a great deal of damage.
Cyclones are large air masses with winds spiralling inwards around a low-pressure centre, and carry clouds and precipitation.
Cold and warm fronts are formed where bodies of cold and warm air meet.
The Earth’s magnetic North and South poles are located near the geographic North and South poles.