rocket
A device that expels gas in one
direction to move in the opposite
direction.
orbital velocity
thrust
The reaction force that propels a
rocket forward.
escape velocity
velocity
Speed in a given direction.
satellite
The velocity a rocket must achieve to
establish an orbit around a body in
space.
space shuttle
A spacecraft that can carry a crew into
space, return to Earth, and then be
reused for the same purpose.
The velocity an object must reach to
fly beyond a planet’s or moon’s
gravitational pull.
space station
A large artificial satellite on which
people can live and work for long
periods.
space probe
A spacecraft that has various scientific
instruments that can collect data,
including visual images, but has no
human crew.
An object that revolves
another object in space.
around
rover
A small robotic space probe that can
move about the surface of a planet or
moon.
space spinoff
vacuum
A place that is empty of all matter.
remote sensing
microgravity
The
condition
of
weightlessness in orbit.
experiencing
geostationary orbit
ASTRONOMY
An orbit in which a satellite orbits
An item that has uses on Earth, but
Earth at the same rate as Earth
was originally developed for use in
rotates and thus stays over the same
space.
place all the time.
CHAPTER 2
SECTIONS 2.1 – 2.4
FLASHCARDS
The collection of information about
Earth and other objects in space using
satellites or probes.