What do you mean by buoyancy?

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Buoyancy**: Buoyancy refers to the upward force exerted by a fluid (which can be a liquid or a gas) on an object that is immersed in it. This force acts in the opposite direction to the weight of the object.

2. **Understanding Buoyant Force**: When an object, such as a wooden block, is placed in water, the water exerts an upward force on the block. This upward force is known as the buoyant force.

3. **Example of Buoyancy**: Consider a wooden block submerged in water. The water applies an upward force on the block, which is the buoyant force. This force allows the block to float or partially submerge in the water.

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