Question

A cork floats in water, while the iron nail sinks. Give reason

Answer 1

1. When an object is immersed in a liquid, an upward force called buoyant force acts on the body.
2. If the density of the object is greater than the density of the liquid, it will sink.
3. If the density of the object is less than the density of the liquid, it will float.
4. Since cork has a lower density than iron, it floats while nail has a higher density so it sinks.