Science Ch16 Lesson Exploring Space

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Terms in this set (...)

Lesson 1
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rocket
a vehicle that makes use of Newton's 3rd Law-action reaction-hot exhaust gases are expelled and the rocket moves in the opposite direction
Robert Goddard
American physicist/engineer built the world's first liquid fueled rocket in 1926
Wernher von Braun
German and then American rocket scientist
V-2 rocket
1st long-range guided ballistic missile
thrust
a push in one direction used to move an object in the opposite direction
velocity
speed and direction
orbital velocity- Define and give OV of Earth, Mars and the Moon.
velocity needed for an object to remain in orbit around an object in space. ov of earth; 30km/s ov of mars; 24.1km/s ov of moon; 1.022km/s
escape velocity- Define and give EV of Earth, Mars and the Moon.
velocity needed to break free, escape the gravitational force of an object. ev of earth; 11.5km/s ev of mars; 5km/s ev of moon; 2.4km/s
Lesson 2
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satellite
anything that orbits an object in space
the "Space Race"
the race between the soviet union and america to see who will accomplish tasks in space
Sputnik
first manmade satellite-Soviet-Oct.4, 1957
Explorer 1
first US satellite-Jan 31, 1958
NASA
National Aeronautic and Space Administration - a US government agency in charge of the space program
Yuri Gagarin
First man in space
Alan Shepard
First American in space
Neil Armstrong
first man to walk on the moon
Mercury Program
1st manned space program-Orbited Earth, one astronaut
Gemini Program
orbited Earth and tested with docking and maneuvering in space. Two astronauts
Apollo Program
orbited the Moon and landed on the Moon. 3 astronauts
space station
a spacecraft meant to be inhabited for extended periods of time
space probe
unmanned spacecraft to explore the solar system and beyond
rover
a small robotic space probe that explores the surface
International Space Station
International Space Station-16 countries contribute. US is largest contributor
Lesson 3
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vacuum
an absence of any molecules
microgravity
what astronauts experience in orbit around the Earth. There is no place in the universe with zero gravity
space program spinoff
a list of NASA inventions that we use in the world today that makes life easier ex; memory foam, firefighting equipment, baby food, freeze dried ice cream
remote sensing
A method of collecting data or information through the use of instruments that are distant from the area or object of study ex. sattelites
geostationary orbit
An orbit in which a satellite orbits Earth at the same rate as Earth rotates and stays over the same place all the time
geo
earth
micro
very small
nav
ship
stell
star
vac
empty
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