AS Physics course on units help

AI Thread Summary
The discussion focuses on the confusion surrounding base units, base quantities, derived units, and derived quantities in an AS Physics course. Base units include fundamental measurements like distance, time, mass, and charge, while derived units are combinations of these, such as force and energy. Understanding the relationship between these units requires a grasp of the underlying physics concepts. Participants emphasize that it's normal to feel overwhelmed at first and advise not to stress too much initially. Clarity will come with further study and comprehension of the subject matter.
ben-newton
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I have just started the AS Physics course and we have been doing base units, base quanntities, derived units and drived quantities. This stuff completely baffles me, and cannot find a site which explains this stuff in bog standard english. Please could someone help me.

Thanks,

Ben
 
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ben-Newton said:
I have just started the AS Physics course and we have been doing base units, base quanntities, derived units and drived quantities. This stuff completely baffles me, and cannot find a site which explains this stuff in bog standard english. Please could someone help me.
Base units are units of distance, time, mass, charge. Units for other quantities, such as Force and energy, are derived from these units (Force is in units of mass x distance/ sec^2 for example; energy is mass x distance^2/sec^2). You won't understand why the units are this way until you understand the underlying physics. Don't worry about it for now.

AM
 
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