Question 14
Estimating earth’s mass.
Suppose you are provided with five different irregular shaped stones, which are collected from different parts of the world. You are asked to design an experiment to estimate the mass of the earth. Firstly, you have to measure the density of each stone.
a. List the apparatus and materials that you need to conduct this experiment. (Score: 1)
b. Explain the function of each apparatus and material that you use in the experiment. (Score: 2)
c. Describe how you would conduct the experiment. (Score: 2.5)
d. Describe how to calculate the average density of the stones. (Score: 2)
e. If it is assumed that the average density of the stones equals to density of the earth, we can estimate the mass of the earth. If you are given a globe (model of the earth) with the circumference of 1 m, describe how you estimate the mass of the earth. (Score: 3)
Scale 1 : 40 000 000.
Suppose you are provided with five different irregular shaped stones, which are collected from different parts of the world. You are asked to design an experiment to estimate the mass of the earth. Firstly, you have to measure the density of each stone.
a. List the apparatus and materials that you need to conduct this experiment. (Score: 1)
b. Explain the function of each apparatus and material that you use in the experiment. (Score: 2)
c. Describe how you would conduct the experiment. (Score: 2.5)
d. Describe how to calculate the average density of the stones. (Score: 2)
e. If it is assumed that the average density of the stones equals to density of the earth, we can estimate the mass of the earth. If you are given a globe (model of the earth) with the circumference of 1 m, describe how you estimate the mass of the earth. (Score: 3)
Scale 1 : 40 000 000.