A simple compass can be made by placing a small bar magnet on a cork floating in water. (The bar magnet is made of iron.) (a) What fraction of a plain cork will be submerged when floating in water? (b) If the cork has a mass of 10.5 g and a 23.5 g magnet is placed on it, what fraction of the cork will be submerged? (c) Will the bar magnet and cork float in ethyl alcohol? Yes No

A simple compass can be made by placing a small bar magnet on a cork floating in water. (The bar magnet is made of iron.) (a) What fraction of a plain cork will be submerged when floating in water? (b) If the cork has a mass of 10.5 g and a 23.5 g magnet is placed on it, what fraction of the cork will be submerged? (c) Will the bar magnet and cork float in ethyl alcohol? Yes No