Give some example of scalar quatities.

Explanation

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

1. **Definition of Scalar Quantities**: Scalar quantities are physical quantities that have only magnitude and no direction. This means that they can be described completely by a numerical value and a unit, without needing to specify a direction.

2. **Examples of Scalar Quantities**:
- **Length**: Length is a scalar quantity because it only has magnitude (e.g., 5 meters) and does not require a direction.
- **Time**: Time is another scalar quantity. When we say it is 3 hours, we do not need to specify a direction.
- **Mass**: Mass is also a scalar quantity. For instance, saying an object has a mass of 10 kilograms does not involve any directional component.
...