ALEX - Alabama Learning Exchange
Force and Motion Facts
Motion makes the world go 'round. Motion makes the moon go 'round too. In fact, motion makes lots of things go. When we think of motion we often think of cars, bicycles, kids running, basketballs bouncing and airplanes flying. What is Force? Force is just a fancy word for pushing or pulling. These two forces act at a distance and do not require direct contact between the objects to function. See D4K's site on Gravity. Magnetism produces a force that can either pull opposite ends of two magnets together or push the matching ends apart. Types Of Contact Forces There are 6 kinds of forces which act on objects when they come into contact with one another. Let's investigate how these forces can be seen in our lives. Normal Force A book resting on a table has the force of gravity pulling it toward the Earth. Experiment with this concept by trying one of these paper bridge experiments from ZOOM or Building Big! Applied Force Frictional Force Tension Force Spring Force Resisting Forces What is Inertia?
Khan Academy
Newton's Three Laws of Motion
Newton's Three Lawsof Motion Let us begin our explanation of how Newton changed our understanding of the Universe by enumerating his Three Laws of Motion. Newton's First Law of Motion: Newton's Second Law of Motion: This is the most powerful of Newton's three Laws, because it allows quantitative calculations of dynamics: how do velocities change when forces are applied. Newton's Third Law of Motion: This law is exemplified by what happens if we step off a boat onto the bank of a lake: as we move in the direction of the shore, the boat tends to move in the opposite direction (leaving us facedown in the water, if we aren't careful!).
6 Virtual Tours Of The Human Body For Free Interactive Anatomy Lessons
When it comes to interactive virtual views, we have gone to space and around the globe. So, it’s not surprising that we are also going within ourselves on a virtual journey of the human body. One of the finest tools available online is Visible Body. Unfortunately, it’s not free anymore. But you can see the beauty of it thanks to the free demo that allows you to explore the head and neck. If you are disappointed that there aren’t any free interactive anatomy tools, worry not. Google Body You can trust Google to take you everywhere. The Google Body browser is a Google Labs project that renders on Google Chrome and any other browser that supports WebGL (like Firefox 4 Beta). MEDtropolis The interactive website aims to educate entertain both kids and adult on bodily health; understanding the human anatomical structure is just part of the process. For instance, check out the narrated tours on Virtual Body. eSkeletons eSkeletons isn’t only about understanding human anatomy. DirectAnatomy
Isaac Newton Facts, Quotes, Gravity, Laws of Motion, Universal Gravitation
Born in England, Isaac Newton was a highly influential physicist, astronomer, mathematician, philosopher, alchemist and theologian. In 1687, Newton published Philosophae Naturalis Principia Mathematica, what is widely regarded to be one of the important books in the history of science. In it he describes universal gravitation and the three laws of motion, concepts that remained at the forefront of science for centuries after. Newton’s law of universal gravitation describes the gravitational attraction between bodies with mass, the earth and moon for example.
Alice in Quantumland: A Charming Illustrated Allegory of Quantum Mechanics by a CERN Physicist
by Maria Popova Down the rabbit hole of antimatter, or how to believe six impossible things about gender stereotypes before breakfast. As a lover of science and of all things Alice in Wonderland, imagine my delight at discovering Alice in Quantumland: An Allegory of Quantum Physics (public library) — an imaginative and unusual 1995 quantum primer by particle physicist Robert Gilmore, who has under his belt experience at Stanford and CERN. Besides the clever concept, two things make the book especially remarkable: It flies in the face of gender stereotypes with a female protagonist who sets out to make sense of some of the most intense science of all time, and it features Gilmore’s own magnificent illustrations for a perfect intersection of art and science, true to recent research indicating that history’s most successful scientists also dabbled in the arts. Gilmore writes in the preface: In the first half of the twentieth century, our understanding in the Universe was turned upside down.
50 Really Cool Online Tools for Science Teachers
A 21st-century education revolves around the Internet for everything from collaboration, tools, lessons, and even earning degrees online. If you are looking for ways to integrate online learning into your science class or science degree programs, then take a look at these cool online tools that are just perfect for both teachers and students. Science Tools to Use with Students These tools offer opportunities for learning about climate, cells, the human body, nature, and more. ChemiCool. AP Tools Whether you are setting up a new AP curriculum or are just looking for additional material to use with your AP science students, these tools will help. Advanced Placement Biology. Websites and Resources for Science Teachers These websites are chock full of amazing resources and tools for science teachers. Discovery Education. Calculators Use these informative environmental calculators with your students. Ecological Footprint Quiz. Online Games Online Science Games. Google Earth Google Earth Ocean.
Motion: Laws of Motion
There was this fellow in England named Sir Isaac Newton. A little bit stuffy, bad hair, but quite an intelligent guy. He worked on developing calculus and physics at the same time. During his work, he came up with the three basic ideas that are applied to the physics of most motion (NOT modern physics). The ideas have been tested and verified so many times over the years, that scientists now call them Newton's Three Laws of Motion. The first law says that an object at rest tends to stay at rest, and an object in motion tends to stay in motion, with the same direction and speed. You can see good examples of this idea when you see video footage of astronauts. The second law says that the acceleration of an object produced by a net (total) applied force is directly related to the magnitude of the force, the same direction as the force, and inversely related to the mass of the object (inverse is a value that is one over another number... the inverse of 2 is 1/2).
