Space Vocab - Energy, Forces and Motion

The initial explosion that resulted in the formation and expansion of the universe

• Big Bang

• atmosphere

• speed of light

• revolution

The region of space influenced by our solar wind

• heliosphere

• atmosphere

• gravity

• radiation

A mixture of gases that surrounds a planet or moon

• atmosphere

• heliosphere

• light year

• radiation

186,000 miles per second

• speed of light

• light year

• Big Bang

• orbit

the distance light travels in one year (9.5 trillion km)

• light year

• speed of light

• revolution

• gravity

The movement of an object around another object

• revolution

• orbit

• rotation

• gravity

The spinning of Earth on its axis

• rotation

• revolution

• orbit

• light year

Energy that is radiated or transmitted in the form of rays or waves or particles

• radiation

• heliosphere

• Big Bang

• speed of light

The path of an object as it revolves around another object in space

• orbit

• rotation

• revolution

• light year

A force of attraction between objects that is due to their masses

• gravity

• light year

• radiation

• orbit