It's time for a tune-up, sounds like the engine has a miss in it.
Sounds are louder when they are closer, because the sound is closer to your ears.
At night-time there are less sounds from traffic and people - therefore any sounds that are heard seem louder.
how much the stereocilia of the hair cells are bent
Start making silly noises and get one of your friends to do it to. Every time get louder and louder but do it in a voice what sounds nothing like your own. Eventually the teacher will get really mad and will start going ballistic.
If it only shakes while moving, have your wheel bearings checked. SOON!
Dig a Hole
Very large. the larger the louder.
Because sounds louder than that (and actually somewhat softer) cause permanent hearing loss.
your voice sounds louder because of the echo on the class or plastic so it rings all through the room
sounds like your break rotors could be warped.
sounds like you have a bad motor mount
anything as loud or louder than a little girl screaming