Image draw my self

Source: http://teras-fisika.blogspot.co.uk/2012/12/medan-magnet.html

Image credit : my self

Source: http://www.dunia-mulyadi.com/2015/04/media-pembelajaran-tentang-gaya-lorentz.html

Not indicating that the content you copy/paste including images is not your original work could be seen as plagiarism.
Here is a post on why this is bad, and here is how easy it is to find allowed photos..

More Info: Abuse Guide - 2017.