* Gravity acts to pull the object down. This is CORRECT. Gravity is the primary force acting on a projectile, causing it to follow a curved path.

* The object moves in a straight path. This is INCORRECT. Projectile motion is characterized by a curved path, usually a parabola.

* The forward velocity of the object is 0 m/s. This is INCORRECT. Projectiles have an initial horizontal velocity that remains constant throughout their flight (ignoring air resistance).

In summary, the only statement that accurately describes projectile motion is "Gravity acts to pull the object down."