The rudder was too small for such a large ship, and therefore, the Titanic could not change directions to get away from the iceburg in time. This is one theory of what went wrong. You can always just use Wikipedia and look up "RMS Titanic" it should really help with any questions you have.
Adding on: (Different person)
They saw the iceberg coming straight in front of them, and the first-in-command decided to stupidly turn, which didn't work at all, and resulted in the compartments being flooded. If the Titanic hadn't been turned, and hit the iceberg straight on, it wouldn't have sank, because only 1 compartment would have been flooded, they could have closed it off, and they all would have been fine.
North Atlantic Ocean
ice burg
Titanic sank up in the northern part of the Atlantic ocean. Titanic crashed into a large ice burg.
The Titanic crashed into an ice berg
it hit the ice burg at aproxly 11:30 pm april, 13 1912
North Atlantic Ocean
The ship hitting the ice burg. The ship sinking.
50 to 100 ft. tall and about 400 ft across.
One, when the ship wrecked.
Only the one iceberg was visible. None else were seen until daybreak.
ice burg
It's called a mystery because no one is sure what happened on the ship and if an ice burg did cause the ship sinking.
Titanic sank up in the northern part of the Atlantic ocean. Titanic crashed into a large ice burg.
run into an ice burg
The problem with the ice on the Titanic was that the crew did not have binoculars to spot icebergs effectively. Additionally, the crew failed to slow down the ship despite receiving iceberg warnings. These factors contributed to the collision between the Titanic and the iceberg, leading to its sinking.
The Titanic crashed into an ice berg
yes, there was but the captain wasn't paying atention, so that is why the ship crashed.