Hukum Kegravitian Semesta Newton1:21:51
Pecutan Graviti dan Pemalar kegravitian1:37:36
centripetal force and centripetal acceleration I58:34
Centripetal force and centripetal acceleration II1:02:48
Hukum Kepler1:47:03
Hukum Kepler 21:47:03
Satelit Buatan Manusia1:47:08