Question

1. Use the idea if upthrust to explain why icebergs float.



2. Describe one way the density of water changes when it freezes

Answer 1

Answer:

1. Archimedes' principle describes buoyancy, or upthrust, the upward direction of fluid pressure A body immersed in water experiences an upward force equal to the mass of the fluid displaced by the body. If the weight of an object is greater than the weight of displaced fluid, it will float.
2. As a result, ice is less dense than the liquid form. Water is the only known non-metallic substance that expands when it freezes; its density decreases and it expands approximately 9% by volume.