Yes, someone can use "Trap Hole" if it's attack is determined to be 1000 or greater when Normal Summoned.
For example, let's say I Normal Summon "The Calculator". If it is the only monster on my field it's attack is immediately determined to be 600. If I already had a 4 star monster then summoned "The Calculator", it's attack is immediately determined to be 1200 and "Trap Hole" can be activated to destroy it.
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A Fusion Summon, or the Summoning of any Monster (Synchro or Fusion) from the Fusion Deck (Extra Deck) is a special summon and so Trap Hole will not work on it.
Normal summon, no. Special summon, yes.The reason is, when Obelisk is normal summoned, no spells, traps or monster effects can be activated. That means it prevents anything being activated in the 'summon response' window, which is where you'd normally use cards like Trap Hole, Bottomless Trap Hole, Torrential Tribute, etc.
If a monster is set you cannot activate it. "Torrential Tribute" can only activate when any player performs a flip summon, normal summon, Ritual summon, Fusion summon or Special summon, but a set is different from a summon so you cannot activate "Torrential Tribute". The same applies to other cards that activate when a monster is summoned (like "Bottomless Trap Hole" and "Solemn Judgment").
Bottomless Trap Hole can be used against a Synchro Summoned monster with appropriate attack, but it's not accurate to say it 'stops' the summon. In game terms, the summon is completed successfully, and cards like Bottomless Trap Hole will be used in response to that successful summon. It means though that Synchro Monsters like Brionac may have already used their effects due to player Priority - if you want to avoid even that happening, you need to negate the summon instead, with a summon negation card.
You cannot activate Trap Hole to negate the tribute summon of Jinzo in Yu-Gi-Oh. No effect of Trap Hole can be activated because Jinzo negates traps in the game. However, your only option to totally prevent Jinzo from negating trap card effects is to negate his summon. To negate a monster's summon also prevents any of its effects on the field from applying. Cards like Solemn Warning not only negate the summoning of a monster but also prevent its effects on the field from ever applying and also destroys the monster.