Space Exploration and Cosmology

Question 1

Asteroid

Answer 1

Big Rock - doesn’t have enough gravity to become a planet

Question 2

Comet

Answer 2

Large mass of ice body passing through the solar system

Question 3

Moon

Answer 3

A body in a planets orbit

Question 4

Galaxy

Answer 4

A gravitational bound collection of stars e.g. Andromeda

Question 5

Universe

Answer 5

Everything that exists including dark energy and dark matter

Question 6

Universe

Answer 6

Everything that exists including dark matter and dark energy

Question 7

Meteor

Answer 7

Small fragment of an asteroid

Question 8

Exoplanet

Answer 8

A planet outside our solar system

Question 9

Dwarf planet

Answer 9

Almost the same mass as a planet but not considered a true planet

Question 10

One light year

Answer 10

9.46 x 10 ^ 15

Question 11

The habitable (or Goldilocks) zone

Answer 11

Where a planet is the distance from a star that is just right

Question 12

How old is the universe

Answer 12

13.7 billion years old

Question 13

Weight

Answer 13

Newtons

Question 14

Mass

Answer 14

Kilograms

Question 15

Gravitational field strength

Answer 15

Newtons per kilogram

Question 16

Newtons first law

Answer 16

An object will continue in its present state of motion unless acted upon by an unbalanced force

Question 17

Ion drive

Answer 17

Let’s a spacecraft leave orbit and change planet

Question 18

Gravitational slingshot

Answer 18

A spacecraft uses another planets gravitational pull to travel faster and further

Question 19

Newtons third Law

Answer 19

for every action force, there is an equal and opposite reaction force

Question 20

Geostationary orbit

Answer 20

Has an orbital height of 36000 km