Vocab 2

Question 1

Orbit

Answer 1

the circular path of an object as it revolves around another object due to gravity

Question 2

Solar system

Answer 2

The sun and its family of orbiting planets and moons and other objects

Question 3

Galaxy

Answer 3

Millions or billions of stars held together in a group by their own gravity

Question 4

Universe

Answer 4

Space and all the matter and energy in it

Question 5

Satellite

Answer 5

a natural or artificial object that revolves around another bigger object in space

Question 6

Impact crater

Answer 6

a crater on a planet or moon caused by the impact of a meteorite or other object, typically circular with a raised rim. Usually a smaller object

Question 7

Axis of rotation

Answer 7

An imaginary line about which around a turning body such as earth rotates

Question 8

Revolution

Answer 8

the motion of one body around another, such as the earth in orbit of the sun

Question 9

Season

Answer 9

a period of the year determined by the position of Earth as it revolves around the sun, this controls temperature and weather.

Question 10

Equinox

Answer 10

In an orbit, a position and time in which sunlight shines equally on the northern and Southern Hemispheres.

Question 11

Solstice

Answer 11

In an orbit, a position and time during which one hemisphere receives it minimum, the time of year when the days are either longest of shortest

Question 12

Mare

Answer 12

A dark plain of solidified lava on the moon, not a female horse. 🐴

Question 13

Eclipse

Answer 13

an event where an object cases its shadow onto another

Question 14

Umbra

Answer 14

The dark center region of a shadow such as then cone of complete shadow cast by an object.

Question 15

Penumbra

Answer 15

A region of lighter shadow that may surround a dark central region. The spreading cone of lighter shadow cast by an object

Question 16

Astronomical unit

Answer 16

average distance from the sun which is approximately 93 mil miles or 150 mil kilometers

Question 17

Ellipse

Answer 17

An oval or flattened circle

Question 18

Terrestrial planet

Answer 18

A planet that has a rocky surface

Question 19

Gas giant

Answer 19

A large plane that consist mostly of gases in a dense form

Question 20

Asteroid

Answer 20

A small solid rocky body that orbits the sun

Question 21

Comet

Answer 21

A body that produces a coma of gas and dust, a small icy body that orbits the sun

Question 22

Meteor

Answer 22

A small streak of light produced by a particle entering earths atmosphere at high speed

Question 23

Meterorite

Answer 23

A small object from outer space that passes through earths atmosphere and reaches the surface

Question 24

Geocentric

Answer 24

Earth centered theory of the solar system

Question 25

Heliocentric

Answer 25

A sun centered theory of the solar system

Question 26

Gravity

Answer 26

The force that objects exert on one another because of their mass

Question 27

Tides

Answer 27

The rise and fall of the ocean levels caused by the gravitational pull of the moon

Question 28

Waxing

Answer 28

The moon at anytime after the new moon and before the full moon so called because it illuminated area is increasing

Question 29

Waning

Answer 29

The moon at anytime after the full moon and before the new moon so called because it’s illuminated area is decreasing

Question 30

Gibbous moon

Answer 30

More than half but less fully illuminated

Question 31

Crescent moon

Answer 31

The curved shape of the waxing or waning moon, less than a quarter illuminated

Question 32

Full moon

Answer 32

When all the moon is illuminated

Question 33

New moon

Answer 33

The entire moon is not illuminated

Question 34

Quarter moon

Answer 34

One half is illuminated

Question 35

Days of a new season

Answer 35

March 22, June 21, October 22, December 21