Asteroids.
These rocky bodies are called "Asteroids".
One major difference is their size. Pluto is significantly smaller than the solid inner planets like Earth, Mars, Venus, and Mercury. Another difference is their composition. Inner planets are primarily composed of rock and metal, while Pluto is composed mostly of ice and rock. Additionally, inner planets have clear and defined orbits around the Sun, while Pluto's orbit is more eccentric and tilted.
This is a very basic answer, but maybe it's what you're looking for. The inner planets are rocky, have no rings, and are smaller. The outer planets are large, gaseous, and have rings.
Solid objects that can orbit planets are called moons. Moons are natural satellites that orbit around planets in a similar way that planets orbit around stars. Moons can range in size from small rocky bodies to larger worlds with their own atmospheres.
Moons are approximately spherical objects which orbit planets and are smaller than the planets that they orbit, although they are still relatively large objects (so an orbiting dust particle does not qualify as a moon). Since moons orbit planets, their motion around the solar system is controlled by the planets that they orbit; planets orbit the sun, and planets take their moons with them.
The key differences between planets and dwarf planets are their size, location, and ability to clear their orbit of other objects. Planets are larger celestial bodies that have cleared their orbit of debris, while dwarf planets are smaller and have not cleared their orbit. Additionally, planets are located in the inner solar system, while dwarf planets are often found in the outer solar system.
The largest objects that orbit the sun are planets.
Inner planets have a radius orbit shorter than the orbit of Jupiter. Outer planets are all the other planets of the solar system.
In our solar system; Inner planets are planets that have an orbit which lies within the asteroid belt. Outer planets are planets which have an orbit which lies outside the orbit of the asteroid belt. The asteroid belt lies between Mars and Jupiter. Therefore the inner planets would be in order away form the sun, Mercury, Venus, Earth and Mars. The outer planets in the same order are; Jupiter, Saturn, Uranus and Neptune.
They are similar in that both the inner and outer planets all orbit the sun.
These rocky bodies are called "Asteroids".
Both asteroids and planets are objects that orbit the sun.
Between the orbit of Mars and Jupiter, there is the asteroid belt. This is made up of millions of small rocks that are in a direct orbit around the sun.
satellites
There are no planets in orbit between Earth and the Sun. The innermost planet in our solar system is Mercury, followed by Venus, then Earth. The region between Earth and the Sun is occupied solely by asteroids and other small objects.
Pluto is different from the inner planets in that it has not cleared it's orbit from asteroids.
A planets gravitational pull is the force it exerts on other objects. The planets orbit is the path it takes due to gravity. Basically gravity causes the orbit.