P1 - topic 3 - the solar system

Question 1

when you look at planets with the naked eye what do planets look like?

Answer 1

stars, but they’re totally different

Question 2

what do all planets orbit around?

Answer 2

stars

Question 3

what do planets often have orbiting around them?

Answer 3

moons

Question 4

discuss the positioning and size of planets compared to moons

Answer 4

moon are usually much smaller than their planets and are found pretty close to the planet

Question 5

what is the Suns radius?

Answer 5

696 000 km

Question 6

what is the Suns mass?

Answer 6

1.99 X 10(30) kg

Question 7

how much bigger is the moons radius than the earths radius?

Answer 7

23 000 times bigger

Question 8

what is the earths radius?

Answer 8

6378 km

Question 9

what is the earths mass?

Answer 9

5.97 X 10(24) kg

Question 10

what is the moons radius?

Answer 10

1738 km

Question 11

what is the moons mass?

Answer 11

7.35 X 10(22) kg

Question 12

what is the smallest planet?

Answer 12

Mercury - radius is 285 times smaller than the sun

Question 13

What is the biggest planet?

Answer 13

Jupiter

Question 14

what is the furthest planet from the sun?

Answer 14

Neptune

Question 15

a manned spacecraft would take how long to get to the moon?

Answer 15

3 days

Question 16

how long would it take a manned spacecraft to Mars?

Answer 16

in around 9 months

Question 17

a manned spacecraft to Neptune would take how long?

Answer 17

12 years

Question 18

what is a galaxy?

Answer 18

a collection of billions of stars

Question 19

planets reflect sunlight and orbit in the sun in what?

Answer 19

ellipses