A box is against a wall. A person pushes on the box, but the box does not move. Is this situation an example of a force? (1 point)
O No, this is not an example of a force because a force pulls an object.
O No, this is not an example of a force because the box did not move.
O Yes, this is an example of a force because a force is a push or pull.
O Yes, this is an example of a force because gravity is pulling the box down.