Gravity in Minecraft affects all Players, Mobs, Items, liquids (such as Lava or Water) as well as certain types of Blocks. Any Entity affected by gravity will fall to the ground rapidly. If the entity is a mob or player, it will likely take fall damage if it has dropped from over a certain height.
Most solid blocks in Minecraft do not obey gravity and will "float" in the air, even when all adjacent blocks are removed (including those underneath). There are, however, a few blocks which do obey gravity and will fall if not supported from below. These include (but may not be limited to):
- Flight - Players who have activated flight mode are unaffected by gravity.
- Feather-Falling Enchantment - If a player's boots are enchanted with this effect, he/she will still fall to the ground at the same speed, but will take less fall damage.
- Elytra - Allows a player to safely glide down to the ground without taking damage while controlling the direction of their descent.
- Chickens - Immune to fall damage, as they will flap their wings while falling, gliding safely down to the ground.
- Sand and Gravel - A well-known bug causes groups of these blocks to sometimes be unaffected by gravity (even when not supported from below) until they are hit by a player.