Science and Technology Exam: Practical Exercises
1. Matching Computer Components
Match each concept in the first column with its function in the second column. (5 points)
- a. Hard Disk [d] Permanently Stores
- b. RAM Memory [b] Temporarily Stores
- c. USB Port [e] Connects
- d. Operating System [a] Manages
- e. Mouse [c] Navigates
2. True or False: Financial Concepts
Indicate whether the following statements are true (V) or false (F). (5 points)
- [V] A percentage is used to indicate a part of a whole.
- [V] Interest is an amount to be paid to the entity that lends
Optical Fiber: Principles, Types, and Applications
1. Understanding Optical Fiber and its Operation
An optical fiber is essentially a thin, flexible rod of transparent material, such as glass or plastic, designed to guide light along its length. It consists of a central **core** surrounded by a **cladding** layer.
Light pulses, representing data, are transmitted through this very fine strand of material.
2. Refractive Index and Light Speed
When light travels through a transparent medium denser than a vacuum, it logically moves at a slower speed than
Read MoreAncient Greek Science and the Properties of Metals
Module 5: Phenomena in the Sky
1. What Territories Included Classical Greece?
The west coast of Turkey (Asia Minor), Greece, and Magna Graecia (south and west of Italy, as well as Sicily).
2. What Is the Theological Stage of Science?
It is a time of human history in which natural phenomena were attributed to supernatural beings.
3. In Isaac Asimov’s Book, Great Ideas of Science, What Are the Two Basic Assumptions of the School of Thales or Ionian School?
There are more than assumptions, but since this
Read MorePhysics: A Comprehensive Exploration of Matter, Energy, and Interactions
Physics (from Lat. Physica, and from the Gr. ????????, ?????? neuter plural) is a science of nature that studies the properties of space, time, matter, and energy, and their interactions.
Physics is not just a theoretical science; it is also an experimental science. Like any science, its conclusions are verifiable by experiment, and its theories can make predictions for future experiments. Given the broad field of study of physics and its historical development in relation to other sciences, it can
Understanding Work, Power, and Energy in Physics
SUBJECT: WORK – POWER – ENERGY
Working Concept
In everyday life, the term work applies to any kind of activity that requires an effort, whether of intellectual or muscular origin. Thus, lifting a body, varnishing furniture, building a bridge or a building, planning a reform of any kind, writing a book, etc. are examples of activities where people work. However, in physics, the concept of work is used in a much more restricted sense. We say that mechanical work is performed upon the displacement of
Read MoreCell Theory and Microscopy: History and Fundamentals
Findings that Preceded the Cell Theory
- In 1661, the Italian physician and physiologist Marcello Malpighi (1628-1694), the first researcher to use the microscope in medicine, discovered capillaries, arterioles connecting with small veins, so was able to complete the scheme of blood circulation. He was also the first to discover the red corpuscles that give color to the blood.
- In 1665, a noted English scientist named Robert Hooke (1635-1703) published the results of his microscopic observations in plant