My input to the applet.

corrected some typo for the applet.

added some design to the layout

added omega w

comment!

good work prof hwang :)

this applet will be a good tool for student learning, they usually cannot understand the transformation of the curve from

"A*sin(w*t)" to ("A*sin(w*t)")^2 as this applet aims to visually represent.

question,

how do you use the blue "B-A*A*cos(2*w*t)/2" to allow learning of average power in AC circuit calculation?

my teaching approach

i normally use only the red curve

"A*sin(w*t)"

and the black curve

"A*A*sin(w*t)*sin(w*t)"

only.

other student learning difficulty and suggestion for applet ?

the other part is the area under the curve "A*sin(w*t)" to ("A*sin(w*t)")^2 is half of the rectangle form by A*A and the period T. student cannot visualize this i feel.

i guess i could use Ejs data tool to find area under the curve to show that.

/htdocs/ntnujava/ejsuser/14019/users/sgeducation/lookang/sin2_pkg/sin2.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list

Download EJS jar file(1186.5kB):double click downloaded file to run it. (11 times by 8 users) , Download EJS source View EJS source