EARTH AND SPACE

Gravity is a force that attracts objects towards each other, fundamental for __________ motion.

celestial bodies'

The __________ is the region around Earth dominated by its magnetic field, guiding charged particles from the solar wind.

magnetosphere

A light year is a measure of __________ that light travels in one year.

distance

The tilt of Earth's axis is about __________ degrees, which results in the seasons.

23.5

Earth's magnetic field is generated by the movement of molten __________ in the outer core.

iron

Natural satellites, like the Moon, are objects launched into __________ around Earth or other celestial bodies.

orbit

The Aurora Borealis is caused by charged particles from the Sun interacting with Earth's __________.

magnetic field

In the geocentric model, __________ is at the center of the universe.

Earth

The Heliocentric model proposed by Copernicus states that the __________ is at the center of the universe.

Sun

Einstein's General Theory of Relativity explains gravity as a geometric property of __________ and __________.

space, time

Gravitational acceleration is indistinguishable from acceleration due to __________ forces according to Einstein's equivalence principle.

other

Gravitational __________ are ripples in space-time caused by violent processes in the universe, predicted by Einstein's theory.

waves