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Conceptual Physical Science, (5th Edition) by Paul G. Hewitt

By Paul G. Hewitt

Conceptual actual technological know-how, 5th version, takes studying actual technological know-how to a brand new point through combining Hewitt's prime conceptual process with a pleasant writing variety, powerful integration of the sciences, extra quantitative assurance, and a wealth of media assets to assist professors at school, and scholars out of sophistication. It presents a conceptual evaluate of simple, crucial issues in physics, chemistry, earth technological know-how, and astronomy with non-compulsory quantitative assurance.

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2 Galileo’s Concept of Inertia EXPLAIN THIS Does a hockey puck need a force to keep it sliding? G alileo tested his revolutionary idea by experiment. After studying balls rolling on planes inclined at various angles, he concluded that an object, once moving, continues to move without the application of forces. In the simplest sense, a force is a push or a pull. 8). When friction is absent, a moving object needs no force to keep it moving. Galileo reasoned that a ball moving horizontally would move forever if friction were entirely absent.

He restrained himself publicly for nearly 15 years. Then he defiantly published his observations and conclusions, which were counter to Church doctrine. The outcome was a trial in which he was found guilty, and he was forced to renounce his discoveries. By then an old man broken in health and spirit, he was sentenced to perpetual house arrest. Nevertheless, he completed his studies on motion, and his writings were smuggled out of Italy and published in Holland. His eyes had been damaged earlier by viewing the Sun through a telescope, which led to blindness at age 74.

VIDEO: Newton’s Law of Inertia VIDEO: The Old Tablecloth Trick VIDEO: Toilet Paper Roll VIDEO: Inertia of a Cylinder VIDEO: Inertia of an Anvil VIDEO: Definition of a Newton 1. Does a 2-kg iron block have twice as much inertia as a 1-kg iron block? Twice as much mass? Twice as much volume? Twice as much weight when weighed in the same location? 2. Does a 2-kg iron block have twice as much inertia as a 1-kg bunch of bananas? Twice as much mass? Twice as much volume? Twice as much weight when weighed in the same location?

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