Meteors

Front

Nearly everything we understand about the universe comes from ___

Back

light emitted or reflected by objects

Front

A "shooting star" is really a tiny bit of interplanetary debris heated to ___

Back

incandescence

Front

Before it becomes a "shooting star", the actual bit of solid stuff coming from space is called ___

Back

a meteoroid

Front

The phenomenon of a meteoroid getting hot and blazing across the sky is called ___

Back

a meteor

Front

If a meteor hits the ground, we call it ___

Back

a meteorite

Front

According to Phil Plait, what's the best way to tick off an astronomer? Options: mix up the terms meteor and meteorite, Ask 'em, "Hey, what's your sign?", Ask "How old are you in light years?", complain about Pluto not being a planet anymore

Back

Ask 'em, "Hey, what's your sign?"

Front

For a typical meteor that you'll see, what is the size of the meteoroid? Options: smaller than a grain of sand, about the size of a marble, about the size of a softball, about the size of a basketball

Back

smaller than a grain of sand

Front

When a meteoroid enters our atmosphere, it can be moving at speeds up to __

Back

70 kilometers per second

Front

The energy of motion is called ___

Back

kinetic energy

Front

If you double an object's speed, it will have ___

Back

four times the kinetic energy