the universe

give me our galaxies name

milk way

define universe

collection of billions of stars

what is a solar system made up of

planets

dwarf parents

moons

artificial satellites

asteroids

comets

define plants

large objects that orbit a star

how many planets are in the solar system

8

give me the 8 planets in the solar system

mercury, venus, mars, Jupiter, Saturn, Uranus and Neptune.

define dwarf planets

planet-like objects that aren’t big enough to be a planet

define moons

they orbit planets

are moons natural or artificial satellites

natural satellites

do moons have circular orbits or elliptical orbits

mostly circular orbit

define artificial satellites

human built satellites that orbit earth.

is artificial satellites circular or elliptical

fairly circular orbit

define asteroid

lumps of rock and metal that orbit the sun

where are asteroids found

in the asteroid belt

define comets

lumps of ice and dust that orbit the sun.

what is the orbit like in comets

they are highly elliptical.

what force creates orbits

gravity

how does gravity provide the force that creates orbit

when the object travels in a circle it means it is constantly changing direction, meaning there is a force acting upon the object. The force would just cause the object to be pulled, but since it is moving it makes in a circle. Creating an orbit.

what is another name for gravity linked to the planets orbiting

it is called the centripetal force.