Memories Formulas
What is the best way to learn formulas?
I have to learn like 50 formulas for my test. Is there any easy way to memories them?
50! I've been an engineer for a long time, and I never needed that many.
Most formulae are just an application of dimensional analysis. The few that are not, ones like
A = πr²
KE = ½mV²
can be noted by the use of a dimensionless constant, like ½ or π in the examples.
You didn't tell us what the test is in, so I can't give you a shorter list...
but these are the important ones in mechanics and electronics. The others you can get from dimensional analysis or by manipulating other equations.
A = πr²
KE = ½mV²
PE = mgh
d = ½at²
Xc = 1/(2πfC)
XL = 2πfL
I = E/R
Q = CV
P = E*I
.
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