This question needs to be more specific because if left like this it is more a physics question.
Objects tend to move from higher to lower energy states, following the path of least resistance. This is known as the principle of least action.
In a straight line. From the center to the outside of a circle.
Fire moves upward due to the natural convection process. As the fire heats the surrounding air, it becomes less dense and rises, creating a flow of air upwards. This convection current carries the flames and heat upwards, which is why fire tends to move in an upward direction.
Sound generally travels in all direction, just like the waves formed when you drop something in a pool of water. But it tends to be more severe in the direction the source travels.
Weather in the middle latitudes tends to move from west to east due to the westerly winds that dominate this region. This is known as the prevailing westerlies, which are responsible for the movement of weather systems across the middle latitudes.
Consumer reports is the traditional source for product reviews. If you are looking for something more contemporary, epinions.com tends to have a wide variety of reviews and should have something on the particular model you are looking at.
Their direction of movement tends to be toward the west, while almost all of them rotate clockwise.
This is an example of 'action' and 'reaction'. Every 'action', like stepping out of the boat on to the shore causes an equal and opposite 'reaction', as the boat moves in the opposite direction. This is also how rockets move in the vacuum of space.
There are three types of inertia: inertia of rest (object at rest tends to stay at rest), inertia of motion (object in motion tends to stay in motion), and inertia of direction (object resists changes in its direction of motion).
The general public is the group that tends to be negatively affected by eminent domain laws.
"An object in motion tends to stay in motion and an object at rest tends to stay at rest unless acted upon by an external force." -Newton's First LawTo change the direction of an object simply apply an external force to it.