Circular Motion 2 Flashcards
1
Q
What is a period?
A
the time it takes for one complete revolution, measured in s/cycle SEOCNS SEONCD
2
Q
What is frequency?
A
the number of revolutions in a given time
T=1/f OR f=1/T
from Hz (per sec) to rpm (per min) #cycles/second x 60/1min
1 rpm = 60 Hz
3
Q
How many Hertz is in one rpm, and what are they measured in?
A
Hz PER SECOND
rpm PER MINUTE
60 HZ per one rpm
4
Q
Formula for speed, and what should you do?
A
Fc=2piR/T
makae sure youre working with Hz, then find T using T=1/f, then substitute
make sure you have the correct units; is speed in km/h or m/s? convert to m/s means dividing by 3.6