Since the block has mass, there is a gravitational force on it. Depress mouse to view answer. Spring force is Absent. Since no spring is touching the block, there is not a spring force on it. Depress mouse to view answer.
Tension is Absent.
Since an unrelaxed string is not attached to the block, there is not a tension force on it. Depress mouse to view answer. Normal is Present. Depress mouse to view answer. Friction is Present.