planets
The outer planets are usually defined as Jupiter, Saturn, Uranus and Neptune. The innermost of those, Jupiter, moves around the sun the fastest. The speed of planet is a function the size of its orbit only -- mass doesn't matter, as figured out by Kepler about 500 years ago. Thus Mercury, the innermost of all planets, has the greatest orbital speed (87.96 Earth days for an orbit), and Neptune the slowest (164.81 Earth years). If you want to include Pluto, then it has the greatest orbital period (247.7 earth years)
MERCURY
The Earth moves faster than the planets that are farther from the Sun.
This is when the planet is at its closest point to the sun on its orbit around it. If its distance carts by enough it will experience higher temperatures at the perihelion. It will also be orbiting at its highest speed at this point.
paramecium
A cold front moves the fastest, and a stationary front moves the slowest. A cold front moves about 20 mph, while a stationary front moves very little.
The central part of the glacier moves fastest than its edges as it is thickest from the center.
The fastest seismic wave that also moves back and forth is the P-wave.
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Mercury moves the fastest 48 km/s
By the gravitational pull
The fastest part of a river is the narrowest or shallowest. In broad, deep sections the water moves slowly, in narrow or shallow sections the river moves fastest. Of course the fastest flowing water is at a waterfall or rapid.
Cheetah.
The Pacific and Cocos plate.
depends on on the form if its a solid it moves really slow and if its a liquid its faster but still slow and moves the fastest as a gas