I WANT TO MAKE MY BALL JUMP :(

ALL I GOT IS THIS :

using UnityEngine;

using System.Collections;

public class MarbleControl : MonoBehaviour {

public float movementSpeed = 6.0f;

 void Update () {

     Vector3 movement = (Input.GetAxis("Horizontal") * -Vector3.left * movementSpeed) + (Input.GetAxis("Vertical") * Vector3.forward *movementSpeed);

     rigidbody.AddForce(movement, ForceMode.Force);

}

 void OnTriggerEnter  (Collider other  ) {

     if (other.tag == "Pickup")

     {

         MarbleGameManager.SP.FoundGem();

         Destroy(other.gameObject);

     }

     else

     {

         //Other collider.. See other.tag and other.name

     }        

 }

}