A student uses a spring dynamometer, stone, thin wire, water and beaker to measure the density of liquid. Design the experimental steps and list the expression of liquid to be measured. Stone density > liquid density, stone density > water density

A student uses a spring dynamometer, stone, thin wire, water and beaker to measure the density of liquid. Design the experimental steps and list the expression of liquid to be measured. Stone density > liquid density, stone density > water density

1. Measure the weight of the stone in the air with a spring dynamometer
2. Completely immerse the stone in water (without sinking to the bottom), and read out the dynamometer number F1
3. Wipe the stone dry and completely immerse it in the unknown liquid. Read the number F2
4. Arrange and restore the instrument
5. Expression ρ = (g-f2 / g-f1) * ρ water

In the morning, Xiao Ming was eating the eggs cooked by his mother. Suddenly, he thought about the density of the cooked eggs. He decided to use the spring dynamometer, water, water cup, thread and other equipment around him to measure them by himself
1、
2、
3、
The expression of egg density is as follows

The steps are as follows: 1) tie the cooked egg with a wire, and weigh the gravity g of the cooked egg with a spring dynamometer;
2) Fill the water cup with water, immerse the cooked eggs in water completely, and weigh the apparent weight g / of the cooked eggs in water with a spring dynamometer;
Calculation formula: ρ = g ρ water / (G-G /)

Experimental steps of measuring egg density
There are only spring dynamometer, water, water cup, line and other equipment

First weigh out the quality of the egg, put the egg into the cup full of water, and the water discharged is the volume of the egg
Re use; density = mass / volume. Then it is the density of the egg