input.getaxis returning -1 by default

using UnityEngine; using System.Collections;

public class Player : MonoBehaviour {

 public float speed = 8.0f;
 public float maxVelocity =3.0f;


 // Use this for initialization
 void Start () {

 }

 // Update is called once per frame
 void Update () {

     float force = 0.0f;
     float velocity = Mathf.Abs (GetComponent<Rigidbody2D>().velocity.x);

     float h = Input.GetAxis ("Horizontal"); //getting input along x-axis only

     Debug.Log (h);

         if (h > 0) {
             if (velocity < maxVelocity) {
                 force = speed;
             }
             Vector3 scale = transform.localScale;
             scale.x = 1;
             transform.localScale = scale;

         } else if (h < 0) {

             if (velocity < maxVelocity) {
                 force = -speed;
             }

             Vector3 scale = transform.localScale;
             scale.x = -1;
             transform.localScale = scale;
         }

         GetComponent<Rigidbody2D>().AddForce (new Vector2 (force, 0));


 }

}