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Earth Sciences

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Nasir Nader

Lvl 10
โˆ™ 2021-10-10 18:34:36
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Cards in this guide (25)
What is lightning

Lighting is the atmospheric discharge of electricity. This electricity is the result of static charges that build up after being generated for reasons that are not clearly understood. Note that any simple action resulting in friction, like pulling plastic wrap off a roll or shuffling across a rug on a dry day, will generate static charges. Moving air can separate charges, and ice is thought to be involved, but the mechanism is not completely explained by science.

When charges are separated, an electrical force appears between them. This force is voltage, the electromotive force. As more charges separate, voltage builds, and at some point, this voltage will be so great that it will ionize air between the charges. Current will flow along this ionized path, and this is lightning. Moving electrons carry the current. The ionized air is superheated, and it emits an intense light. The light we see is the lightning, and the superheating of the air creates a shock wave we perceive as thunder. The bolt can pass from ground to cloud, from cloud to ground, or from cloud to cloud. Links can be found below for more information.

Lightning is a natural phenomenon of electrostatic discharge breakdown that occurs when static electricity builds up between thunderclouds or between the cloud and the earth.

If the difference in electrical potential between two points is more than 100 million volts,

it produces a plasma during discharge, causing an explosive expansion of air by heat. By dissipating, this plasma creates a flash of light and thunder.

What does AST mean

ast means to know about the planets

How do waves change as they approach the shore

As waves approach the shore, interaction with the sea floor slows the waves down and the crests of the waves bunch up. They increase in height as the energy in each wave compresses into a shorter horizontal distance, but the period of the wave does not change. Eventually, the waves break.

What is the tail of a comet made of

A comet usually has two tails, though only one - the vapor trail - is commonly seen from earth (the other is a gas trail). It is made of vapor blown off from the comet by the solar wind - it is mostly water vapor, but contains many other molecular substances, too - ammonia, cyanide, methane, etc.

Which is an example of kinetic energy

A skateboard rolling across the street A hockey puck sliding across the ice

The sun produces energy from matter in its core through the process of

fusion

Prominences may be seen in the sun's

Corona

Which planet do most known extrasolar planets most resemble

Jupiter Neptune

The planet that most extrasolar planets resembles Jupiter.

Jupiter(apex)
Most of the confirmed Exoplanets are larger gaseous planets with large masses. These are easier to detect and confirm due to their size. They most resemble Jupiter, although many are thought to be much larger than our largest planet.

Which type of cloud resembles a puffy cotton ball

cumulus

The farther a star is away from earth the more it is

red shifted

Hydrogen bombs and stars both produce energy with nuclear

fusion

Which best explains why the sun maintains its size and shape

Pressure caused by high temperatures are balanced by gravity

Which situation is an example of equilibrium

The amount of water in a cup does not change.

When you divide the mass of a substance by its volume you get its what

When we divide the mass of a substance by its volume we get its density.

When a rock falls from outer space all the way to the ground it is called

A meteorite.

What Galaxies are moving away from the Earth

Most of them.

What is true about compasses

compass magnets can be deflected by earths magnetic field or other permanent magnets

What force do scientist think was responsible for clumping matter together to form the first stars after the big bang

Many scientists think, several believe, and others conjecture,

that it was the force of gravity.

Select the star life cycle that is accarate

Nebula, white dwarf, red giant, black hole

Which gas giants have more moons than the terrestrial planets

All of our Solar Systems gas giants have more moons than the terrestrial planets.

Jupiter (63), Saturn (62), Uranus (27) and Neptune (13).

Which is best describes how air moves during convection

Warm air is displaced by cooler denser air

What causes a solar nebula to initially begin to form a solar

An explosion from outside the nebula

What of the following is a benefit of strength training

all of the above

Why do astronomers find it difficult to locate extrasolar planets with telescope

light from the they orbit makes it difficult to locate extrasolar planets with telescope

Which planet has high temperatures due to the runaway greenhouse effect

venus :)

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Astronomy

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What causes the tail of a comet

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How do waves change as they approach the shore

What aspect of the gas giants has the biggest effect on their rings and satellites

The sun produces energy from matter in its core through the process of

What do all of the terrestrial planets have in common

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