Name the common physical processes involved in the transport of materials across the cell membrane.

Explanation

### Step-by-Step Solution:

1. **Identify the Question**: The question asks for the common physical processes involved in the transport of materials across the cell membrane.

2. **Define the Cell Membrane**: The cell membrane is a semi-permeable barrier that controls the movement of substances in and out of the cell.

3. **List the Common Physical Processes**:
- **Diffusion**: This is the process where particles move from an area of higher concentration to an area of lower concentration. The movement continues until equilibrium is reached, meaning the concentration is equal on both sides of the membrane.
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