Lesson 1
How many stages are in a multistage rocket?
3
What does ISS Stand for?
International Space Station
What does LEO stand for?
Low Earth Orbit
a device that expels gas in one direction to move in the opposite direction
What is a Rocket?
an object that orbits a planet
What is a satellite?
Rockets originated in what country?
China
What was the first artificial satellite?
Sputnik I
What are the names of two unmanned spacecraft?
Messenger, New Horizons, Curiosity, InSight; Options may vary
a large artificial satellite on which people can live and work for long periods
What is a space station?
a small robotic space probe that can move about the surface of a planet or moon
What is a rover?
Who is 1 scientist that helped develop rockets?
Konstantin Tsiolkovsky
Robert Goddard
Wernher von Braun
What does NASA stand for?
National Aeronautics and Space Administration
What is the name of the undersea facility that astronauts use to train for their missions called?
The Aquarius
a reaction force that propels a rocket forward
What is thrust?
the feeling of weightlessness in orbit
What is microgravity?
A rocket moves forward when...
gases shooting out the of back of the rocket push it in the opposite direction
Who was the first human in space?
Yuri Gagarin
What are the three conditions in space that differ from those of Earth?
Microgravity, extreme temperatures, and space's near-vacuum state
a place that is empty of all matter
What is a vacuum?
the velocity a rocket must achieve to establish an orbit around a body in space
What is orbital velocity?
Why can the third stage of a multistage rocket go faster than the first stage, even though it has less fuel?
It carries less weight and has already been accelerated by the earlier stages.
Which President made it a priority to land an American on the moon safely and bring him back?
John F. Kennedy
An object's ______ does not change in space, but its ______ registers as zero.
mass; weight
the velocity an object must reach to fly beyond a planet's or moon's gravitational pull
What is escape velocity?
a spacecraft that has various scientific instruments that can collect data, including visual images, but has no human crew
What is a space probe?