Amplitude, Period and Frequency
Add yours
Sorry, we don't have any videos for this topic yet.
Let teachers know you need one by requesting it
Key Questions

If
#f(x)=asin(bx)# or#g(x)=acos(bx)# , then their amplitudes are#a# , and the periods are#{2pi}/b# .
I hope that this was helpful.

Frequency and period are related inversely. A period
#P# is related to the frequency#f#
# P = 1/f# Something that repeats once per second has a period of 1 s. It also have a frequency of
# 1/s# . One cycle per second is given a special name Hertz (Hz). You may also say that it has a frequency of 1 Hz.A sin function repeats regularly. Its frequency (and period) can be determined when written in this form:
#y(t) = sin(2pi f t)# 
#"(Amplitude)"=1/2["(Highest Value)""(Lowest Value)"]#
graph{4sinx [11.25, 11.25, 5.62, 5.625]}
In this sine wave the highest value is
#4# and the lowest is#4# So the maximum deflection from the middle is
#4# k.This is called the amplitude
If the middle value is different from
#0# then the story still holds
graph{2+4sinx [16.02, 16.01, 8, 8.01]}You see the highest value is 6 and the lowest is 2,
The amplitude is still#1/2 (6 2)=1/2 *8=4# 
This key question hasn't been answered yet. Answer question