Minecart rail systems in Minecraft: powered rails, stations
Put a Stone Button on that block.

The Stone Button is crafted from a single stone block and stays pressed for one second, a little shorter than a wooden button. Unlike wooden buttons, stone buttons ignore arrows and tridents: only a player or a mob pressing them triggers the pulse. Buttons all work the same way; the Oak Button page explains how.
It is made with the Crafting Table from Stone. It is mined with a pickaxe.
Stone → Stone Button
// Slots with several items cycle through every accepted option.
Put a Stone Button on that block.
a Stone Button, a pressure plate, a Target hit by an arrow.
| face | floor · wall · ceiling |
|---|---|
| facing | north · south · west · east |
| powered | true · false |
At the Crafting Table: 1 × Stone gives 1 × Stone Button. Mining the block drops it.
It is a redstone switch that sends a short pulse when pressed.
The fastest tool is the pickaxe.
No: when a piston pushes it, it breaks and drops as an item.