How can I bouce a ball?

Hi! I tried to bounce a ball but I couldn’t make it.

In my book, [Create] - [Physic Material] and set [Bounciness] value 1 and [Bounce Combine] Maximum.

So I followed the instruction but my ball just passed through a paddle!

(The instruction shows how can I make a ball bounce when falling on a paddle)

Help me plz!T_T

First off, Make sure your ball has a sphere collider, and your ground a cube collider.

Then give the ball a Physics Material and turn up the bounciness on that material.

Hi,
You can assign the Physics material to paddle and attached rigidbody component to ball.

Thanks
Ram