Online courses directory (27)

Motion, speed and time are three fundamental concepts in basic physics and they are important building blocks for understanding more advanced topics. This free online course introduces you to how distance, speed, time and mass are combined to give displacement, velocity, force and acceleration. Newton’s 3 Laws of Motion, which are the bedrock of much of our understanding of physics today, are also introduced and explained in a clear and concise manner. Along with explanations of the formulae used, a number of examples are worked through, giving a full understanding of the subject. References are also made as to how these formulae are used in real-world situations. By studying this course you will gain a clearer knowledge and understanding of important topics in basic physics. This course will be of great interest to students who are studying physics, chemistry, engineering, mathematics and some medical sciences, and to students who wish to pursue a career in any of the sciences or engineering fields, and to the individual who wants to understand how the world around us works.<br />

A molecule is a group of two or more atoms that bind together using chemical bonds. They may be from one or multiple elements and it is the ratio, or mass composition, of each molecule that gives the molecular compound its chemical characteristics. In this free online science course, you will learn about molecules and how they are composed of various elements, in mass, atoms and ratios. The course introduces the student to Avogadro’s number or the Mole, which is used to convert between atomic mass and grams, so that you will be able to work out ratios and weights of molecules. You will also learn how to balance chemical equations, and by balancing the reactants within equations, get viable chemical reactions. This branch of chemistry is known as Stoichiometry. The course will be of great interest to all students who wish to pursue a career in any of the sciences such as chemistry, physics, biology or geology, or the individual learner who simply wants to learn and understand how atoms form the molecules which make up all the material surrounding us. <br />

Cellular respiration is a key concept to understand in biology as it involves obtaining energy from the nutrients organisms eat and the removal of waste products. It is a key biological process which is vital to all life forms, including humans. In this free online biology course you will learn about the chemical makeup of the energy that is stored, generally referred to as adenosine triphosphate (ATP), how this molecule works and how it is used in the respiratory process. You will also learn about glucose as it is the main source of energy, and the stages involved in cellular respiration from glycolysis through the Kerb’s cycle to the electron transport chain. You will learn how molecules are split to release energy through oxidization to produce ATP and waste products in the form of water and carbon dioxide. This free online biology course will be of great interest to all students who wish to pursue a career in sciences such as biology, biochemistry, medicine, pharmacy or the individual learner who simply wants to learn more about how we convert our food into energy.<br />

Cell physiology is the branch of science that studies the structure and function of individual cells. Our increasing knowledge and understanding of cellular mechanisms and processes have led to great advances in all areas of biology and medicine. In this free online physiology course you will be introduced to the main topics in cell physiology such as the major components of a typical animal cell. You will learn about the mechanisms behind cell growth and multiplication, about the movement of substances into and out of cells, how energy is processed within the cell, and how and why cells maintain an electrical charge across their membranes called membrane potentials. This free online cell physiology course will be of great interest to all healthcare professionals who would like to learn more about the structure and function of cells, and to all students of biology and medicine who would like a greater knowledge and understanding of the mechanisms and processes involved in cell physiology.<br />

Matter exists in four states - solid, liquid, gas and plasma and it will change state depending on the temperature and pressure applied to the matter. In this free online chemistry course about states of matter you will learn about the characteristics of each of the four states and the amount of energy that can be added to or taken from a substance before it starts to change state. As all substances change state at different temperatures and pressures you will learn how to use phase change diagrams to plot the energy and pressure levels, the triple point, critical temperature, boiling and melting points associated with different substances. You will also learn in a step by step manner how to calculate the change in energy needed to move a substance along the state of matter spectrum. This free online chemistry course will be of great interest to all students who wish to pursue a career in any of the sciences such as chemistry, physics, biology or geology, or the individual learner who simply wants to learn and understand what is happening when matter changes from solid to liquid to gas.<br />

The free online Diploma in General Science course from ALISON is ideal for anyone who wants to gain a comprehensive knowledge and understanding of key subjects in biology, chemistry and physics. In biology you will covers subjects such as cell theory, genetics and evolution; in chemistry you will cover subjects such as atoms, molecules and the periodic table; and in physics you will cover subjects such as magnetism, electricity and sound. This Diploma course will be of great interest to those who want to further improve their knowledge and understanding of general science, and will greatly enhance your career prospects.<br />

Great advances have been made in the field of anatomy and physiology of the human body. ALISON's free online diploma course introduces you to the basic anatomy and physiology of important systems in the body such as the cardiovascular system, respiratory system, reproductive system, skeletal system, nervous system and others. For each system covered in the course, the anatomical features are outlined and the physiological functions are explained. <br /><br />ALISON's anatomy online course will be of great interest to students of anatomy, physiology, biomedical science and medicine, as well as any learner wanting to expand their knowledge and understanding of the human body.<br />