Question

What is the name for a star and planets held together by gravity?

A.
solar system

B.
galaxy

C.
black hole

D.
supernova

Answer 1

I think its B

Answer 2

that's probably right. i think either b or a?? because c and d don't make sense

Answer 3

Im gonna go with B, could you help me with a few more?

Answer 4

maybe

Answer 5

what are the questions?

Answer 6

Which contribution did Copernicus make to our view of the solar system?

A.
He proposed the sun-centered model of the solar system.

B.
He showed that planets moved in elliptical orbits.

C.
He proposed that gravity kept the planets in their orbits.

D.
He proposed the earth-centered model of the solar system.

Answer 7

i think it's A

Answer 8

I think so too.

Answer 9

do you have more?

Answer 10

yes

Answer 11

ok

Answer 12

What was the purpose of Project Gemini?

A.
to land on and explore the moon

B.
to orbit, rendezvous, and dock spacecraft

C.
to see if a man could survive in outer space and reenter the earth's atmosphere

D.
to test the effects of prolonged spaceflight on the human body

Answer 13

B

Answer 14

i think

Answer 15

Ok

Answer 16

Which planet has the shortest period of revolution?

A.
Venus

B.
Mars

C.
Earth

D.
Mercury

Answer 17

i think its D since its the smallest.

Answer 18

that sounds right then

Answer 19

Which is the windiest planet?

A.
Jupiter

B.
Neptune

C.
Saturn

D.
Uranus

I think its A because the great red spot is a hurricane 2 and a half times the size of earth

Answer 20

yup

Answer 21

:)

Answer 22

is that it or do you have more?

Answer 23

i have more

Answer 24

A star’s light is shifted to the red part of the light spectrum.

What does this mean about the length of light waves and movement of the star?

A.
The wavelengths are getting longer, meaning the star is moving away from the observer.

B.
The wavelengths are getting shorter, meaning the star is moving away from the observer.

C.
The wavelengths are getting shorter, meaning the star is moving toward the observer.

D.
The wavelengths are getting longer, meaning the star is moving toward the observer.

Answer 25

it might be B but i'm not sure

Answer 26

Yeah i think its B also.

Answer 27

wait, it might be A.

Answer 28

like i said, i'm not really sure. choose whatever you think sounds right

Answer 29

ok, i have one more.

Answer 30

ok

Answer 31

Which best describes the differences between how Ptolemy and Kepler described the solar system?

A.
Ptolemy saw the sun at the center of the solar system, while Kepler saw the earth as the center.

B.
Ptolemy saw the earth at the center of the solar system, while Kepler saw the moon as the center.

C.
Ptolemy saw the earth at the center of the solar system, while Kepler saw the sun as the center.

D.
Ptolemy had a heliocentric view of the universe, while Kepler had a geocentric view of the solar system.

Answer 32

i think it's c

Answer 33

me to

Answer 34

well thanks! :)

Answer 35

OMG! I GOT AN 85% :D THANK YOUUUUUU

Answer 36

you're welcome :D

Answer 37

bai :)