By William C. Robertson
Intimidated via inertia? anxious by means of forces? Mystified by means of Newton s legislation of movement? You re no longer by myself and assistance is handy. The cease Faking It! sequence is ideal for technology academics, home-schoolers, mom and dad desirous to support with homework all of you who desire a jargon-free technique to study the historical past for educating heart institution actual technological know-how with self assurance. With invoice Roberton as your pleasant, capable yet just a little irreverent advisor, you'll find you could come to grips with the fundamentals of strength and movement. Combining easy-to-understand reasons with actions utilizing typically chanced on gear, this booklet will lead you thru Newton s legislation to the physics of house go back and forth. The publication is as unique because it is informative. better of all, the writer is aware the wishes of adults who wish concrete examples, hands-on actions, transparent language, diagrams and definite, a certain quantity of empathy. rules to be used Newton's legislation, and the entire different movement ideas offered during this ebook, do an exceptional activity of assisting us to appreciate, clarify, and are expecting the area round us. we will be able to use them to get to the Moon, layout curler coasters, and increase protection rules for vehicles. in spite of the fact that, there are events during this ebook the place all of the movement stuff is simply simple wrong-- because of Albert Einsteins' corrections to the legislation of motion--which could be addressed in one other cease Faking It! publication. more information technological know-how self-discipline: (mouse over for complete category) Acceleration Friction Gravity Inertia Mass Newton s legislation of movement velocity Vectors pace Experimenting utilizing arithmetic meant consumer position: Curriculum manager, Elementary-Level Educator, Middle-Level Educator, father or mother, specialist improvement supplier, instructor academic concerns: lecture room administration, Curriculum, casual schooling, Inquiry studying, instructions, expert improvement, instructor content material wisdom, instructor guidance Contents Preface SciLinks bankruptcy 1: Newton s First One bankruptcy 2: during which We Describe movement after which swap It bankruptcy three: Newton s moment One bankruptcy four: There s No Such factor as Gravity The Earth Sucks bankruptcy five: Newton s 3rd bankruptcy 6: around and around and around within the Circle video game bankruptcy 7: To the Moon, Alice! word list Index
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Extra info for Force and Motion: Stop Faking It! Finally Understanding Science So You Can Teach It
Sample text
Well, your palm indents, so my conclusion (also Newton’s) is that the table is pushing on your palm. The idea of a table pushing on a person seems pretty silly to some people, but that’s just because science concepts don’t always hang out with common sense. I warned you about that in Chapter 1. What you have to do is quit thinking of forces as things that require some kind of conscious effort. That’s easier to believe when you’re pushing on a mattress. The springs in the mattress push back, and you can feel it.
What force is causing that acceleration? 10 something other than you exerting a force on you. Grab a rock or ball and hold it in your hand. Can you feel the rock exerting a force on your hand? ) Can you see the effect of the rock exerting a force on your hand? ) What is the net force acting on the rock while it’s resting in your hand? ) Now drop the rock onto your hand. When the rock hits, is it exerting a larger or smaller force than before? What about the force your hand exerts on the rock?
When I say that science doesn’t answer the “why” question, I mean in an ultimate, grand-schemeof-things sense. In a practical sense, of course science explains things. ” there’s a scientific answer (see the Stop Faking It book on Light). To go back to the gravity example, you could ask why things have a gravitational attraction for one another. There are scientific answers for that. ” But then you could ask why gravitons exist or why space-time is curved. ” Either that, or the person will give you an answer that is religious in origin.