how to make an object move on its own unity code example

Example 1: how to make an object move in unity

Vector3 input = new Vector3 (Input.GetAxis("Horizontal"), 0 , Input.GetAxis("Vertical");
Vector3 dir = input.normalized;
Vecotr3 vel = dir * speed * Time.deltaTime;

transform.Translate(vel);

Example 2: how to move an object in unity using c#

public class NewBehaviourScript: MonoBehaviour {     public float movementSpeed = 10;       void Update(){          transform.Translate(Vector3.right * movementSpeed * Time.deltaTime);       } }