Rotational symmetry is the number of times a shape can fit into itself when it is rotated 360 degrees about its centre. Lets look at some of the examples to give you a better pricture.

STATIC CHARGE ONLINE IGCSE PHYSICS CLASS Static charges are electrical charges comprised of Positive and Negative charges.  Static charges do not move since it resides statically on the insulators.  Like charges repel while unlike charges attract each other. How does static charge create? Static charges are produced when two.

GRAPH SCALE A simple understanding of scale in the graph. Many of you have asked me, what it means by 1cm to 1 unit, 2cm to 1 unit, 2 cm to 3 units and etc? Take a look at the explanation below. Simple explanation for IGCSE students