What is the force that governs (controls) the motion of our Solar System?
Gravity
100
What is different about space shuttles now compared to before 1981?
Before 1981 space shuttles (space crafts) could only be used once. Now they can be used for several different missions.
100
All the planets have what in common?
The same shape and shape of orbit
100
What is a device that collects light from and
magnifies images of distant objects
a telescope
200
What motion does Earth make every 24 hours?
It ROTATES on its axis.
200
Planets orbit the Sun in our solar system ... why?
Because the sun has the greatest mass in our solar system
200
What is one reason astronauts working outside the International Space Station need to wear space suits? The space suits —
Space suits have communication devices needed in them.
200
Out of the following planets which would have the greatest gravitational pull... Venus, Mars, or Jupiter?
Jupiter because it has the greatest mass
200
What is a spacecraft used to transport people
and equipment to and from the space
station
a shuttle
300
Millions of pieces of rocky material of various sizes orbit the Sun between the orbits of Mars and Jupiter. These objects are known as -
Asteriods
300
If you wanted to lower the gravitational pull of a planet, what could you do to the mass?
Lower the mass.
300
Why is it necessary for astronauts on the International Space Station to generate and recycle oxygen?
There is not enough oxygen in space to sustain life.
300
What is a large star which is dense and made up of hot gasses?
The sun
300
What is an unmanned spacecraft that is
used to collect information about
distant objects in space
probe
400
What planets could be accurately described as rocky, terrestrial, and relatively close to the Sun?
The four inner planets. Mercury, Venus, Earth, Mars
400
What would happen to the gravitational pull of two objects as they move FARTHER AND FARTHER apart.
The gravitational pull will decrease as the objects move farther apart from each other.
400
What science tool advanced space exploration by allowing humans to see better and farther into space?
Telescopes
400
What are icy masses that have large elliptical orbit
Comets
400
What is an object launched into orbit that is
designed to send and receive Information
satellite
500
What orbits (planets) lie closer to the sun than the Earth does?
Mercury and Venus
500
Why does the moon orbit Earth?
The gravitational pull of the Earth keeps the moon orbiting.
500
The International Space Station is a huge science laboratory that orbits Earth every 92 minutes. Experiments on board the International Space Station can help scientists learn —
how to solve problems of living in space
500
What are large metallic and rocky objects that are
clustered in bands called belts.
Asteriods
500
What things do you need for a manned mission? What is a manned mission?
A space mission with a human on it... fuel, food, oxygen, restrooms,...