Measurements, quantities, and important numbers of physics in full You must have done a measurement. For example measuring the length of a table with a bar or often called a meter. You can see other measuring activities, for example, measuring the mass of rice, the mass of meat and measuring the length of a plot of land. Do you understand what actually measures it? What are the benefits of measuring? And how? You can answer this question by studying this chapter. Therefore, after learning this chapter you are expected to be able to: 1. do data retrieval and understand important numbers, 2. processing measurement data, 3. using a length, mass and time measuring device in data retrieval, 4. distinguish the principal quantity and derivative quantity, 5. determine the unit and dimensions of a quantity, 6. use dimensions in physical analysis A. Introduction In learning your physics you will always be connected with measurements, quantities and units. Do you know what is calle
introduction to chemistry and its role in the fields of health, agriculture, industry, biology, archeology, and law.
introduction to chemistry and its role in the fields of health, agriculture, industry, biology, archeology, and law. Since 1800, the human population on earth has experienced a fivefold increase. This causes an increase in the expectation of the values of life. Medicine, disease control, and increasing food production are very important. As a result, there has been very rapid progress in various fields of life. In ancient times, people rode horses, donkeys, or camels as a means of transportation. With the discovery of fuel from petroleum, modern transportation equipment, such as motor vehicles and airplanes, have also been found. At present there are also many equipment from polymer and ceramic materials instead of wood and metal equipment. These materials are produced by the factory to obtain material with different properties from natural materials. All changes and discoveries cannot be separated from Chemistry. In elementary and middle school, you certainly have studied