State whether the following quantity is a scalar or vector ?
(a) pressure `" "` (b) force
(c) momentum `" "` (d) energy
(e) weight `" "` (f) speed.

Explanation

To determine whether the given quantities are scalars or vectors, we will analyze each one based on their definitions and characteristics.

### Step-by-Step Solution:

1. **Pressure**:
- Pressure is defined as force per unit area.
- Although force is a vector quantity (it has both magnitude and direction), pressure does not have a direction associated with it. It only has magnitude.
- **Conclusion**: Pressure is a **scalar** quantity.
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