Normally, drop an egg into a bowl of water and the egg will sink to the bottom; but if the water is replaced with salt water, the egg will float on the surface. Why do eggs float in salt water?
1. Since the density of eggs is less than that of salt water, eggs will float on top of salt water. When water is added to the brine, the density of the brine decreases, and when the density of the brine is less than the density of the egg, the egg sinks.
2. Explain the relationship between force and motion: When an egg is immersed in water, its buoyancy is less than gravity, so the egg will sink. When the egg is immersed in salt water, the buoyancy is greater than the gravity, so the egg will float. When the buoyancy and gravity are equal, the egg will float in one position and not move. This is the balance of gravity and buoyancy.
3. Generally speaking, whether a substance sinks in water depends on the specific gravity of the substance. If the specific gravity is larger than water, it will sink, and if it is smaller than water, it will float. This is the same as putting eggs in salt water. related to density.