The entire house was painted by Tom is this a active sentence or a passive sentence

Explanation:

The active voice puts emphasis on the noun (person/object) performing the verb/action.

The structure is:

An example is:

The passive voice places the emphasis on the noun receiving the action.

The structure is:

The same example from above in the passive voice is:

The food was eaten by the cat.

The sentence were are given is:

The entire house was painted by Tom.

Identify the subject, action, and object

Therefore, the order is object (the house), action (painted), subject (Tom). This must be the passive voice. The house is receiving the action of being painted .

yes, it can be both.