which single characterstic must be known about an object to determind if it will sink or float in water

1 answer

The single characteristic needed to determine if an object will sink or float in water is its density relative to the density of water. If the object's density is less than that of water (approximately 1 g/cm³ at room temperature), it will float. Conversely, if the object's density is greater than that of water, it will sink.