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Which statement best describes the difference between vector and scalar quantities?(1 point)

Responses

Scalar quantities must reference a metric unit, while vector quantities do not.
Scalar quantities must reference a metric unit, while vector quantities do not. - no response given

Scalar quantities must reference a direction, while vector quantities do not.
Scalar quantities must reference a direction, while vector quantities do not. - no response given

Vector quantities must reference a metric unit, while scalar quantities do not.
Vector quantities must reference a metric unit, while scalar quantities do not. - incorrect

Vector quantities must reference a direction, while scalar quantities do not.

1 answer

The statement that best describes the difference between vector and scalar quantities is: Vector quantities must reference a direction, while scalar quantities do not.

To elaborate:

  • Scalar quantities are described by a magnitude only (e.g., temperature, mass, speed).
  • Vector quantities are described by both a magnitude and a direction (e.g., velocity, force, displacement).