Question

help for a medal and a fan

Answer 1

Question 1 (Multiple Choice Worth 2 points)

Which of the following scientists was a student of Tycho Brahe and gathered data that confirmed the heliocentric model of the solar system?

Galileo

Kepler

Newton

Ptolemy

Question 2 (Multiple Choice Worth 2 points)

Saturn is approximately 1.5 billion kilometers from the sun. What is this distance in AU?

0.1 AU

10 AU

100 AU

1,000 AU

Question 3 (Multiple Choice Worth 2 points)

Ptolemy suggested that the Earth was at the center of the solar system. Copernicus suggested that the sun was at the center of the solar system. Which of these statements best explains why Ptolemy and Copernicus had different views about the solar system?

They wanted to discredit each other.

They had different beliefs and backgrounds.

They wanted to create confusion in the scientific community.

They wanted to move the scientific community towards religion.

Question 4 (Multiple Choice Worth 2 points)

Which of the following statements or expressions is most nearly associated with Kepler's Second Law of Planetary Motion?

P2 = A3

Planetary orbits revolve around two foci.

A planet moves fastest when it is farthest from the sun.

A planet moves slowest when it is farthest from the sun.

Question 5 (Multiple Choice Worth 2 points)

According to the nebular hypothesis, which of the following is true?

The nebula expanded outward.

Gas and dust flattened into a disk shape.

The sun used up all the gases in the nebula.

The planets were created by the solar wind.

Question 6 (Multiple Choice Worth 2 points)

In the history of astronomy, which of the following is true?

Johannes Kepler was a student of Tycho Brahe.

Galileo Galilei built one of the first observatories.

Ptolemy argued that the sun was the center of the universe.

Isaac Newton was criticized for his work on the geocentric model.

Question 7 (Multiple Choice Worth 2 points)

In the following image, what conclusion can you draw about the speed of the planet at location A compared to location B?

A diagram showing the orbit of a planet around the sun. When the planet moves through the part of its orbit labeled A, it is closer to the sun than it is when it moves through the part of its orbit labeled B.

When the planet is at A it is moving faster than at B.

When the planet is at A it is moving slower than at B.

There is no change in speed for the planet at either A or B.

The orbital speed of the planet is the square of the distance between A and B.

Question 8 (Multiple Choice Worth 2 points)

Saturn is 9.54 AU from the sun. What is its distance from the sun in kilometers?

14,000,000 km

15,723,270 km

57,000,000 km

1,431,000,000 km

Question 9 (Multiple Choice Worth 2 points)

Given the equation P2 = A3, what is the orbital period, in years, for the planet Saturn? (Saturn is located 9.5 AU from the sun.)

5 years

29 years

229 years

500 years

Question 10 (Multiple Choice Worth 2 points)

All the scientific theories used to explain the formation of the solar system are

outdated

imaginative

non-testable

unacceptable

Answer 2

@texaschic101

Answer 3

@jessyv

Answer 4

thats super long... u need all ans...?

Answer 5

ya i could do it wher i could give you a medal for each ?

Answer 6

i mean u can guess some of them first right?

Answer 7

@JAMIE<3you

Answer 8

@mlb004

Answer 9

give us your answers first then we can go from there

Answer 10

right its kinda hard to explain everything

Answer 11

1.newton
2. 10 au
3.b
4. A planet moves slowest when it is farthest from the sun.
5. b

Answer 12

3, 5 are correct

Answer 13

maybe i will explain the 1st 5 questions? or just 1, 2, 4

Answer 14

k

Answer 15

which

Answer 16

1 2 4

Answer 17

ok
1. im not sure about this but Newton can't be Brahe's student (Newton was too young, you can look up their born/death years) i guess the answer is Kepler but he was not a student of Brahe, Kepler was Brahe's assistant

Answer 18

k

Answer 19

tell me if you don't get what i mean

Answer 20

i get it

Answer 21

great
2. you don't have to calculate from km to AU u can guess
so Sun to Earth is 1 AU, Sun to Mars is 1.5 AU, Saturn is much further away but the whole solar system is 39.5 AU
so make a reasonable guess!

Answer 22

k

Answer 23

and thats...?

Answer 24

10 au

Answer 25

nice! so lets move on
4. first of all, A belongs to Kepler's 3rd law, that square of planet's orbital period is proportional is cube of radius (semi-major axis) of the orbit
planet "moves" (spin or goes around the sun?) at the same speed
so guess which

Answer 26

?

Answer 27

which part

Answer 28

this may help http://www1.kcn.ne.jp/~h-uchii/intro.PS/keplaw.jpg

Answer 29

press wrong button but ya i get it now

Answer 30

great! so the ans is?

Answer 31

planet "moves" (spin or goes around the sun?) at the same speed

Answer 32

but there's no such ans. in your question
I actually try to explain this is not Kepler's 2nd law