destroying a physics object after it starts moving?

Hi all, is there a way to destroy a physics object after it starts moving? eg. If I hit a physics object cube it will react to the hit with physics rolling bouncing or whatever then after a delay it will destroy (so it is not left in the scene)

cheers!

You would probably want to attach a script to the object you want to destroy that uses OnCollisionEnter
or OnTriggerEnter to call Destroy( gameObject, timeUntilDestroy);