Solar System

Question 1

Nebula

Answer 1

a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.

Question 2

Solar Nebula

Answer 2

solar system began forming within a concentration of interstellar dust and hydrogen gas called a molecular cloud

Question 3

Nuclear Fusion

Answer 3

a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.

Question 4

Sunspot

Answer 4

They are regions of reduced surface temperature caused by concentrations of magnetic field flux that inhibit convection.

Question 5

Terrestrial Planets

Answer 5

Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars

Question 6

Prograde rotation

Answer 6

Having a rotational or orbital movement that is the same as most bodies within a celestial system

Question 7

Retrograde Rotation

Answer 7

All eight planets in the Solar System orbit the Sun in the direction of the Sun’s rotation, which is counterclockwise when viewed from above the Sun’s north pole

Question 8

Gas Giant

Answer 8

a large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune.

Question 9

Satellite

Answer 9

a satellite is an artificial object which has been intentionally placed into orbit

Question 10

New Moon

Answer 10

the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude

Question 11

Waxing Crescent

Answer 11

The moon is less than one-half illuminated by the sun but less than one quarter illuminated

Question 12

1st QUARTER MOON

Answer 12

The First Quarter Moon is a primary Moon phase when we can see exactly half of the Moon’s surface illuminated

Question 13

WAXING GIBBOUS

Answer 13

Waxing means that it is getting bigger. Gibbous refers to the shape, which is less than the full circle of a Full Moon, but larger than the semicircle shape of the Moon at Third Quarter

Question 14

Full Moon

Answer 14

the phase of the moon in which its whole disk is illuminated

Question 15

WANING GIBBOUS

Answer 15

Waning means that it is getting smaller. Gibbous refers to the shape, which is less than the full circle of a Full Moon, but larger than the semicircle shape of the Third Quarter Moon

Question 16

Last quarter moon

Answer 16

The moon has moved another quarter of the way around Earth, to the third quarter position. The sun’s light is now shining on the other half of the visible face of the moon. Waning crescent: Less than half of the moon’s face appears to be getting sunlight, and the amount is decreasing

Question 17

Waning Crescent

Answer 17

Waning’ refers to the shrinking of the Moon’s illumination and ‘Crescent’ means less than half of the Moon is illuminated. This phase signifies surrender

Question 18

Solar Eclipse

Answer 18

solar eclipse occurs when an observer passes through the shadow cast by the Moon which fully or partially blocks the Sun.

Question 19

Lunar eclipse

Answer 19

A lunar eclipse occurs when the Moon passes directly behind Earth and into its shadow.

Question 20

Comet

Answer 20

A comet is an icy small Solar System body that, when passing close to the Sun, warms and begins

Question 21

Asteroid

Answer 21

Asteroids are minor planets, especially of the inner Solar System. Larger asteroids have also been called planetoids

Question 22

Asteroid Belt

Answer 22

The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets.

Question 23

Meteoroid

Answer 23

a small body moving in the solar system that would become a meteor if it entered the earth’s atmosphere.

Question 24

Meteorite

Answer 24

A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon.

Question 25

Meteor

Answer 25

Its like an asteroid