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6.11B & 6.11C

Gravity - Space Exploration

Gravity The force that causes objects with mass to attract one another.
Gravitational Attraction The force that pulls two objects towards each other; the greater the mass of and object, the greater the attraction; the further apart the objects, the weaker the attraction.
Newton’s Law of Universal Gravitation The law that says every object in the universe attracts every other object, and that the force is affected by mass and distance: the greater the mass of an object, the greater the attraction; the farther apart the objects, the weaker the attraction.
Mass The amount of matter in an object
Space Exploration The investigation of physical conditions in space and on stars, planets, and other celestial bodies through the use of satellites, space probes, or spacecraft with human crews.
Rocket An engine that provides thrust directly through the burning of its fuel without requiring the intake of air.
Spacecraft A vehicle or device designed for travel or operation outside Earth’s atmosphere.
Space Shuttle A reusable spacecraft designed to transport people and cargo between Earth and space.
Space Probe An unmanned spacecraft designed to explore the solar system and transmit data back to Earth.
Rover A vehicle for exploring the surface of an extraterrestrial body (such as the Moon and Mars).
Satellite Something that orbits around another object; for example, a moon orbiting a planet or a human-made object orbiting Earth.
Telescope An instrument for viewing or detecting distant objects.
Observatory A building or place given over to or equipped for observation of natural phenomena.
International Space Station An orbiting space satellite, construction of which began in 2001 with the cooperation of 16 nations; used for scientific and space research.
Galileo Galilei The father of modern science; made improvements to the telescope and discovered the four largest moons of Jupiter, among many other scientific accomplishments.
Astronauts A person trained to be part of a spacecraft crew
NASA National Aeronautics and Space Administration; the American governmental agency dedicated to space exploration.
Created by: oaydin7181