Distinguishing Scalar and Vector Quantities

Steps:

• Recall scalars have only magnitude (e.g., mass, speed); vectors have magnitude and direction (e.g., velocity, force).
• Classify each quantity in the options as scalar or vector.
• Identify options with only scalars or only vectors.
• Select the option containing both types.

Why B is correct:

• B mixes scalars (area, current, work) with vectors (force, velocity, weight), as vectors require direction per vector addition laws.

Why the others are wrong:

• A: All vectors (acceleration, momentum, velocity, weight).
• C: All scalars (distance, kinetic energy, power, pressure).
• D: All scalars (mass, temperature, time, speed).

Final answer: B