You want to click to flip a coin and show the backside? Here's how to do it.
Insert the images of front and back of the coin.
Select the front, in the Custom animation task pane, click add effect, select exit, more effects, choose the collapse effect.
Change the speed at the top of the task pane to whatever speed you like.
Select the back of the coin, in the custom animation task pane, click the add effect button, select entrance, more effects, choose stretch.
Change the speed to the one you selected for the front of the coin.
Next to begin select with previous. Double click the animation in de task pane. Select the timing tab, next to delay set a delay of 1 sec (if you applied fast for example in the speed list).
Align the two pictures so that they cover each other.
