Earth And Space

Question 1

Astronomy

Answer 1

The study of the universe and everything in it

Question 2

Geocentric

Answer 2

The sun moon planets and stars all orbit the earth which doesn’t move

Question 3

Heliocentric

Answer 3

Planets orbit the sun instead of the earth

Question 4

Universe

Answer 4

Everything that we know exists

Question 5

Big Bang

Answer 5

This is a theory to explain how the universe is formed. the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.

Question 6

Galaxy

Answer 6

Is large group of dust, stars, planets and dark matter held together by gravity

Question 7

Antimatter

Answer 7

Is the mirror image of matter every particle has a corresponding particle of anti matter

Question 8

Hypothesis

Answer 8

Collection of ideas the seem to explain what is observed. Predictions that can be tested

Question 9

Models

Answer 9

Describes reality based on hypothesis that have withstood observational and experimental tests. Explains with mathematics properties and behaviors of some object or phenomenon

Question 10

Theory

Answer 10

Series-of well tested hypotheses that together form a self consistent and accurate description of nature capable of making predictions that can be tested and verified by anyone

Question 11

Laws

Answer 11

Proven theory’s that have stood the test of time and have broad applicability

Question 12

Constellations

Answer 12

Some stars seem to be grouped together forming images in the sky

Question 13

Ecliptic plane

Answer 13

Plane of earths orbit around the sun. A squashed circle

Question 14

Asteroid

Answer 14

Are lumps of rock that orbit the sun they are too small to be classified as planets thought to be left over from the formation of the universe the asteroid belt lies between the orbits of mars and Jupiter

Question 15

Gravity

Answer 15

Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward one another. On Earth, gravity gives weight to physical objects, and the Moon’s gravity causes the ocean tides

Question 16

Force field

Answer 16

Force fields are vector fields that describes a non-contact force acting on a particle at various positions in space. It is a region in which each point is affected by a force

Question 17

Gas giants.

Answer 17

A gas giant is a giant planet composed mainly of hydrogen and helium. Gas giants are sometimes known as failed stars because they contain the same basic elements as a star. Jupiter and Saturn are the gas giants of the Solar System.

Question 18

Terrestiel planets

Answer 18

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.

Question 19

Light year

Answer 19

a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 million million miles).

Question 20

Comet

Answer 20

a celestial object consisting of a nucleus of ice and dust and, when near the sun, a ‘tail’ of gas and dust particles pointing away from the sun.