The normal force is the force exerted by a surface on an object in contact with it. It is always perpendicular to the surface and prevents the object from falling through the surface.
Normal force is calculated by multiplying the mass of the object by the acceleration due to gravity. This is because the normal force is equal and opposite to the force of gravity acting on the object.
The normal force and weight are equal in magnitude but opposite in direction. This means that when an object is at rest on a flat surface, the normal force is equal to the weight of the object, keeping it in equilibrium.
Not necessarily. If the object is in motion or on an inclined surface, the normal force may not act directly opposite to the weight. It will still be perpendicular to the surface, but its direction may vary depending on the circumstances.
The normal force does not directly affect an object's motion. It is responsible for keeping the object in contact with the surface and preventing it from accelerating due to gravity. However, in some cases, the normal force may contribute to friction, which can affect an object's motion.