Which of the these physical quantities is a vector quantity ?

Options

A. Temperature
B. Speed
C. Gravitational Intensity
D. Work

Explanation

To determine which of the given physical quantities is a vector quantity, we need to analyze each option based on the definition of vector quantities.

### Step 1: Understand Vector Quantities
Vector quantities are physical quantities that have both magnitude and direction. Examples include velocity, force, and acceleration. In contrast, scalar quantities have only magnitude and no direction.

### Step 2: Analyze Each Option
1. **Temperature**: This is a scalar quantity as it only has magnitude (e.g., 25 degrees Celsius) and no direction.

2. **Speed**: This is also a scalar quantity. Speed indicates how fast an object is moving but does not provide any information about the direction of movement (e.g., 60 km/h).

3. **Gravitational Intensity**: This is a vector quantity. Gravitational intensity not only has a magnitude (e.g., 9.8 m/s²) but also a direction (towards the center of the Earth).

4. **Work**: Work is a scalar quantity. It has magnitude (e.g., 50 Joules) but does not have a direction associated with it.

### Step 3: Conclusion
From the analysis, the only vector quantity among the options provided is **gravitational intensity**.

### Final Answer
The physical quantity that is a vector quantity is **gravitational intensity**.

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