SCMH 1010 Study Guide - Midterm Guide: Sodium Bicarbonate, Heinrich Hertz, Optic Nerve
1 Mar 2018
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Magnetism: magnetic force, william gilbert (16th century, discovered dipole magnet, like repels, unlike attracts, magnetic field, region of influence of the magnetic material. The magnetic poles wander: the apparent magnetic north pole has been moving further north, and accelerating over time. It is actually moving toward siberia: south pole is also moving. Pairs of poles: breaking apart a magnet makes that many more magnets- each piece keeps the same characteristics. The science of life: magnetic navigation from iron minerals in bacterium react with the earth"s magnetic field. Jonathan blakemore- discovered the bacterium in woods hole, ma in the mid 1970s. Batteries and electric current: electrical current is the flow of charged particles, volta developed battery to supply electrical current, converts chemical energy to kinetic energy. Electric circuits: electric circuit is an unbroken path of material carrying electricity, a circuit must have a source, a closed path, and a device to use electrical energy.
