Instead of calling these bills they are known as banknotes in Australia. They come in $100, $50, $20, $10 and $5. They come in different colors so they can be identified easily, they all measure the same vertically but they are different horizontally which means the $100 banknote would be the biggest and the $5 banknote would be the littlest.
These coins come in silver for 50¢, silver for 20¢, gold for $1, and silver for 10¢; gold for $2, and silver for 5¢ pieces. 50¢ piece is in the shape of a 12-sided polygon, other Australian coins are round. The $1 and 10¢ pieces are almost identical in size, except that the $1 coin is thicker and heavier. The $2 and 5¢ pieces are almost identical in size, except that the $2 coin is thicker and heavier.