The gravity is there, thats what keeps the ISS in orbit. However the gravity acts on everything in the ISS the same, so there is no relative acceleration in the

The gravity is there, thats what keeps the ISS in orbit. However the gravity acts on everything in the ISS the same, so there is no relative acceleration in the ISS. A cosmonaut who is not touching anything and not moving relative to the walls will thus stay not touching anything, yet at the same time will still be accelerating towards the earth.