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Unformatted text preview: Physics concepts for Math 116 Here are, I think, all the physics concepts we will use in Math 116 this term. I wont do them justice, of course; you should take Physics 140 for that. This is just a vocabulary cheatsheet. Ive included units for all the quantities, in both metric and English flavors. One of the best tricks the physicist has is to keep track of the units during a calculation. Its a great way to check that your answer makes sense, and it catches a lot of mistakes. It helps a lot to be familiar with the conversions, especially the metrictometric conversions, like 1 N = 1 kg m/s 2 . There are, of course, many more units for each quantity. Ive just given a couple. I recom mend the site http://www.onlineconversion.com/ if you want to convert units. Time Metric units: English units: seconds (s) seconds (s) Conversions: None needed Time you know. Length or Distance Metric units: English units: meters (m) feet (ft) Conversions: 1 m = 3.28 ft, 1 ft = .305 m, 1 in = 2.54 cm Length you know. One inch is exactly 2.54 centimeters. They redefined the inch to make that true. Area Metric units: English units: square meters (m 2 ) square feet (ft 2 ) Conversions: 1 m 2 = 10.8 ft 2 , 1 ft 2 = .0929 m 2 Area you know. Volume Metric units: English units: cubic meters (m 3 ), liter ( ) cubic feet (ft 3 ) Conversions: 1 m 3 = 1000 , 1 m 3 = 35.3 ft 3 , 1 ft 3 = .0283 m 3 Volume you know. 1 Velocity Metric units: English units: meters per second (m/s) feet per second (ft/sec) Conversions: 1 m/s = 3.28 ft/s, 1 ft/s = .305 m/s Velocity is how fast some length or distance is changing. Its signed; a positive value means the length is increasing, a negative value means its decreasing. Acceleration Metric units: English units: meters per second per second (m/s 2 ) feet per second per second (ft/s 2 ) Conversions: 1 m/s 2 = 3.28 ft/s 2 , 1 ft/s 2 = .305 m/s 2 Acceleration is how fast some velocity is changing. Positive if the velocity is increasing, negative if its decreasing. If an object falls near the Earth, it accelerates at a constant rate due to gravity. We call this acceleration g , and its equal to 9.8 m/ s 2 or 32 ft/s 2 ....
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 Winter '08
 Conger
 Math

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