That’s not normal, if you mean bouncy like a tennis ball on a normal car that’s shock absorbers knackered normally the springs are rusted up and don’t move much and going over a small hump can be slow and almost bang your head off roof
When the springs good and shockers good it should go over humps without fuss at low speeds, driving along road if the road undulates a bit that will have an effect but not like a rocking horse if you undo the shocker and push in and out it should resist but slide with force