Space & Satellites

Question 1

What is weight?

Answer 1

Weight is due to the pull of gravity. It is a force and it is calculated in Newtons. The equation to find the weight of somthign is mass x gravity.

Question 2

What is mass?

Answer 2

Mass never changes, we use Kg for it. The mass of an object is how much matter it has.

Question 3

The planet has a _____ mass, there is more force afting on it. But it also _____ as you go away from the sun.

Answer 3

The planet mas a bigger mass, there is more force acting on ig. But it also decreases as you go away from the sun.

Question 4

Day

Answer 4

24 hours, the time it takes the earth to spin in its axis

Question 5

Moon

Answer 5

A large lump of rock orbiting around a planet

Question 6

Orbit

Answer 6

The path that a planet takes around the sun

Question 7

Sun

Answer 7

The star that earth and other planets orbit

Question 8

Year

Answer 8

The length of time it takes a planet to go around the sun

Question 9

Solar system

Answer 9

A star with planets and other objects orbiting it

Question 10

Asteroid

Answer 10

A small lump of rock arbiting around the sun

Question 11

Constellation

Answer 11

A pattern of stars

Question 12

Galaxies

Answer 12

Billions of stars geouped together

Question 13

Milky way

Answer 13

The galaxy that our solar system is in

Question 14

Star

Answer 14

A huge ball of gas that gives out heat and light energy

Question 15

Universe

Answer 15

All the galaxies and the space between them

Question 16

The temprature of a planet _____ as it ____ from the sun

Answer 16

The temperature of a planet cools down as it goes away from the sun

Question 17

A yearly orbit of a planet with _______ from the sun as they need to go through ________

Answer 17

A yearly orbit of a planet with it’s distainer from the sun as they need to go through differnt distances

Question 18

The distances _____ can be _______

Answer 18

The distance discussed in a space topic can be enormous

Question 19

Light year

Answer 19

The distance that light travels in a year

Question 20

Light year equation

Answer 20

9.46 x 10 (12) km or 9.46 x 10 (15)m

Question 21

What is a satellite

Answer 21

A satellite is anything that is orbiting around a planet

Question 22

What is polar orbiting?

Answer 22

A satellites used to take pictures of the earth, it is an earth observation satellites.

Question 23

What is geostationary?

Answer 23

It is a communciation satellite, used to transmit TV programs of telescope calls. It is always over the same part of earth

Question 24

What is the difference between a man-made satellite and a natural satellite

Answer 24

It is how they are made. Man made satellites are launched into space by artificail satellitws, while the moon that is not artificially made, are called natural satellites

Question 25

The differnce between polar and geostationary

Answer 25

Is that geostationary satellites orbit much higher, thpically 36,000km. It also means that they travel more slowly.

Question 26

Early ideas VS old ideas

Answer 26

Old:
Geocentric— everything orbits a stationary earth
-thought that prbits were perfectly circular
-methods were not accurate

New ideas:
-we use telescopes and other things to predict
Heliocentric— planets inculding earth orbit around the sun
-not accurate orbits p— ovae shape
-new ideas perfectly predict the moments in the solar system

Question 27

How con scientist find out things about solar system

Answer 27

With telescope and radio waves. The bad thing about it is that if you see a telescope from earth you are going to see well becuase of the polluted light and air.

Question 28

Order of the planets

Question 29

Why do we have seasons?

Answer 29

By the direction earth travells in. There is the Southern Hemisphere and the Nothern Hemisphere. Becuase of the tilt, one part points towars the sun and the other away from it.

Question 30

Why does the length of a day vary throughout a year?

Answer 30

Earth is tilted as it travells around the sun, so some parts recieve more sunlight than others. This changes during the year becuase the earth moves around the sun, which gives rise to the seasons.