every x points, object speed increases

Ok, I'm having a bit of trouble figuring this one out. I'm not much of a coder so I'm here asking for help. I don't think it will be a problem to figure out for yous all over here ;)

var objectSpeed: int;

function Update () {

objectSpeed = 2;

amtToMove = objectSpeed * Time.deltaTime;

transform.Translate(Vector3.down * amtToMove);

if(transform.position.y <= -0.1){

    transform.position.y = 6;

    transform.position.x = Random.Range(-4.8,4.8);

    iPhoneUtils.Vibrate();

    scoreScript.playerScore -= 50;
}

if (( scoreScript.playerScore % 200 ) == 0){

            objectSpeed = 5;

        }
}

The code above increases the speed of the falling objects by .5 once the score hits 200. What I want to happen is, every 200 points I want the speed to increase by .5, but I don't know how to go about doing that. I'm guessing I might need to be using a loop for this?

Any assistance is appreciated.

You don't need a loop - you can use the modulo operator to find the remainder of division of one number by another.

Practically:

if (( scoreScript.playerScore % 200 ) == 0)
// if the remainder of playerScore / 200 is 0

You'd put this check just after wherever you increase the score, so it doesn't get checked every frame.