Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Test 7: Celestial Ob

Test 7: Celestial Objects, gravity and Space Expolration

The celestial ____ that is the center of our solar system, around which every object orbits is the Sun. body
Between the orbits of Mars and _____ is where most of the asteroids in our solar system are located. Jupiter
The composition of the Sun is best described as being _____ and composed of hot gases. dense
All of the inner planets are _____ and terrestrial. rocky
A _____ is a visible streak of light which shows the path of a rocky object which has entered Earth's atmosphere. meteor
Planets in the _____ system follow an orbital path which is most accurately describes as more or less elliptical. solar
The Earth rotates around the Sun and the _____rotates around the Earth. moon
Planets vary as they get farther from the Sun. Generally the farther a planet's orbit from the Sun, the longer it takes to ______ the Sun. orbit
The _____ of all the planets in our solar system is more or less the same. shape
_____ governs the motion of our solar system. Gravity
A _____ has a tail and is generally composed of ice, rock, and frozen gases. comet
Gravity can be defined as the _____ of attraction between two or more masses. force
Mass and _____ affects the strength of the gravitational pull on two objects. distance
To have the _____ gravitational attraction between two masses, they will have the largest distance between them and the largest difference in mass. smallest
The _____ between the motion of the bodies and gravitational forces determines the orbital paths of objects in our solar system. balance
The _____ is a scientific tool that has allowed humans to see better and farther into space. telescope
Some scientists are planning a manned space mission to a rock planet slightly farther from the Sun than Earth. The planet is known as _____. Mars
A supply of _____ for the astronauts, is an important requirement for a manned spacecraft traveling through space. oxygen
Astronauts wear space suits, which provide oxygen, protection, and ______. communication
The International Space Station helps scientists learn how to solve _____ of living in space. problems
A space probe, a _____, and a manned rocket can all communicate with people on Earth. satellite
Until technology discovers a way, _____ to the closes star in another solar system is not possible for a human crew due to the relatively short human life spans and slow travel speeds. travel
The advantage of using telescopes launched into space is the _____ are usually clearer because they do not have to look through our atmosphere. images
Rockets must have enough _____ to overcome Earth's gravity, so humans may explore space. thrust
Created by: oakhills



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards