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Objects + Collision

BBMS Heinz Space Objects and Potential Collisions

What is an orbit? path around an object
What is gravity? force of attraction due to size of object
More mass? more gravity
Small mass? small gravity
What is velocity? speed plus direction
Too much gravity? objects collide
Too little gravity? objects drift off
Too much velocity? object flies off
Too little velocity? object gets pulled in by gravity and collides
What does "potentially hazardous" mean? might be dangerous
What is a collision? when objects crash together
What is a meteoroid? a rock in space
What is a meteor? a rock from space now in the atmosphere, a shooting star
What is a meteorite? a rock from space that passed through the atmosphere and landed on the surface
What is a crater? a hole in the surface, evidence of a collision
What is a gas planet? a planet with no land, mostly atmosphere
What are the gas planets in our solar system? Jupiter, Saturn, Neptune, Uranus
What is a terrestrial planet? a planet with land
What are the terrestrial planets in our Solar System? Mercury, Venus, Earth , Mars
What is a a dwarf planet? a planet that shares its orbit with other object, not including moons
What are the dwarf planets in our Solar System? Pluto, Makemake, Ceres, Eris, Haumea
What is an asteroid? a large rock made of planet material
Where are most asteroids? in the asteroid belt
What is the Kuiper belt? a region past Neptune with asteroids, short period comets, and dwarf planets
What is the Oort Cloud? a region at the edge of the solar system with many icy objects and in the home of long period comets
What is a comet? an object made of rocks, dust and frozen gas, that develops a tail when near a sun
Popular Earth Science sets




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