Gravity, Electricity, Magnetism 11

Gravity, Electricity, Magnetism 11 - alone and always in...

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THE MECHANICAL UNIVERSE Name: MAI NGUYEN Video 11. Gravity, Electricity, Magnetism Class: PHYS 2426 1. What do all great physicists have in common? All seem equally fascinated with the mysteries of nature. 2. How far is the nearest star beyond the sun? 4 lightyears away. 3. What is a light-year? About 10 trillion kilometers. 4. What large object did Cavendish weigh? Earth 5. What is unique about magnetic poles? They attract if they are different, repels if they are the same. They are never
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Unformatted text preview: alone, and always in pairs that are both equal and opposite. 6. Who invented the electric battery? Allessandro Volta 7. What is the value of the magnetic constant? 1 x 10^-7 8. How are K e and K m related? Electric and magnetic force ratio would have units m^2/s^2, otherwords the square of speed. Divide electric constant by magnetic constant and you get the speed of light. 9. When was the telegraph invented? Samual Morse...
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This note was uploaded on 02/23/2012 for the course PHYS 2425 taught by Professor Sherman during the Summer '08 term at Collin College.

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