Courses tagged with "Free to Access" (12)
This free online Physics course covers electronics, electric systems, magnets, sounds and transformers, and much more. It provides a comprehensive grounding in Physics and is ideal as a complement to regular classes, a study or revision aid, or as a resource for someone pursuing an interest in basic science.
This free online tutorial reviews motion, electric fields, spectra, energy transfers, force, acceleration, gravity Newton's Laws, projectiles, light, and much, much more. This comprehensive grounding in Physics is ideal as a complement to regular classes, as a study and revision aid, and as a resource for someone pursuing an interest in basic science.
The Big Bang theory has revolutionized our understanding of how the Universe was formed. It presents the scientific proof that shows how the Universe expanded from an infinitely small point around 13.7 billion years ago. In this free online course the learner will discover how scientists calculated when the Big Bang happened and how the Universe expanded after the Big Bang. The formation of the first atoms is discussed and how they are responsible for the cosmic background radiation that is found throughout the Universe. This free online course will be of great interest to students of astronomy and physics and to all learners who would like to learn more about the Big Bang theory and what it has to say about the formation of the Universe. <br />
The power of electrical energy has been harnessed by engineers over the past century to transform society and how we live our lives. The phenomenon of electrical energy has been known since the 16th century, but it was only in the 19th century that rapid progress was made in the areas of electrical technology and electrical engineering. <br /><br />ALISON's free online electrical technology course introduces the basic laws of electricity, sources of electricity and electricity safety procedures. It also reviews electrical technology such as resistors, inductors, capacitors and series, and parallel circuits. <br /><br />ALISON's free online electrical technology course will be of great interest to all learners who would like to learn the basics of electricity and how electrical technology works to bring all the benefits of modern living into our lives.<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 />
Using vectors to study motion is a fundamental skill to have when studying physics. Vector quantities used to describe the physical world include displacement, velocity, acceleration, and force. In this free online physics course the standard way to represent vectors and their axes as well as unit vector notation are explained in a clear and step-by-step manner. Examples show how to work out the angle or distance necessary to get the desired displacement. Using two known variables you will learn how to work through the process of calculating the remaining value, such as time in air or horizontal displacement using a variety of techniques. This free online physics course will be of great interest to students who are studying physics, chemistry, engineering, mathematics, and to students who wish to pursue a career in any of the sciences or engineering fields, and even the sportsperson who wants to plan for a specific outcome when hitting a golf ball or batting a ball.<br />
Gravity is the force that keeps us on the ground and understanding how gravity works is very important as it has a great influence on the upward and downward movement of objects. This free online course about gravity will explain Newton’s Second Law of Motion, the universal constant, which is used to work out the force of gravity throughout the universe. You will also learn what the effect of the earth's force of gravity, or little g as it is known, has on an object and why mass is not the same as weight. To fully understand gravity this course will take you step-by-step through the relevant formulas, showing you how to calculate velocity or distance based on time and then plot these changes so you will have a visual concept of what is happening. This course will be of great interest to students who are studying physics, chemistry, engineering, mathematics, and to students who wish to pursue a career in any of the sciences or engineering fields.<br />
Calculating change in motion is a very important concept to master in physics. When change happens in one dimension it is relatively easy to calculate the variable. However, change rarely happens in just one direction so you need to learn how to manage more than one variable. This free online physics course explains how to visually represent each change in a dimension as a vector so that it can be easily understood. You will learn how to add two vectors together and calculate all the relevant information for the resulting third vector. Working through various examples, including different elevations and inclines, you will learn how to solve for any variable through the use of the right-angled triangle and then use trigonometry and quadratic equations to calculate the relevant variables. This free online physics course will be of great interest to students who are studying physics, chemistry, engineering and mathematics and to any individual who wants to learn more about the movement of objects in two dimensions.<br />
In physics the study of movement and the motion of objects is called kinematics and is a branch of mechanics. The study of the motion of objects focuses on topics such as acceleration, position and velocity. In this free online course you will investigate the movement of objects by looking at the real-world application of kinematics. You will see how to answer interesting questions such as what distance does the Airbus A380 need for take-off, how long it takes for an FA-18 Hornet to take off from an aircraft carrier, and do race cars accelerate when cornering even if travelling at a constant speed. The course will walk you through a number of formulae, demystifying them by explaining and rearranging them in a clear and easy to understand way. This course will be of great interest to students who are studying physics, chemistry, engineering and mathematics, to students who wish to pursue a career in any of the sciences or engineering fields, and to the learner who wants to see how science can answer real-world questions.<br />
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 />
Understanding the concept of force and the effects various forces have on objects are very important topics in physics. For example, when you try to move a heavy object it takes more effort to get it moving than to keep it moving because of gravity and the different types of friction involved. In this free online physics course you will learn more about the force of gravity and its counterpart the normal force, and why some objects do not move even when they are on a slope. The force of friction is also discussed, including static and kinetic types, and as friction is dependent on types of the materials involved the course also looks at the coefficient of static friction relative to kinetic friction. Examples of each type of force are worked through giving the learner a clear insight into how forces work together and how to calculate their respective values. This free online physics course will be of great interest to students who are studying physics, chemistry, engineering and mathematics, to students who wish to pursue a career in any of the sciences or engineering fields, and to anybody wanting to understand the dynamics of moving objects on specific surfaces.<br />