The cat jumped . . . . . . the table.

Preposition is a part of speech that determines the position of the subject or object in terms of its location. It often follows the verb. In the given sentence ‘cat’ is the subject and ‘table’ the object. Since ‘jumped’ is the verb the preposition will determine the location of the cat with respect to the table.If the cat is below the table it will jump ‘upon’ the table. If the cat is on the table it can still jump ‘on’ it or ‘down’ it.
The cat jumped upon the table.