Heartbeat is a scalar quantity because it has magnitude (number of beats per minute) but no direction. It is not associated with any specific orientation in space.
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Charge is a scalar quantity because it only has magnitude and no direction.
Electric flux is a scalar quantity, as it represents the amount of electric field passing through a given area. It does not have a direction associated with it, unlike vector quantities.
Work is a scalar quantity, as it is described by a single value (the amount of energy transferred) and does not have a direction associated with it.
A scalar is a quantity that is represented by a single numerical value, without any direction. Scalars are used in mathematics, physics, and other fields to represent quantities like temperature, speed, and mass.
Force is not a scalar quantity because it has both magnitude and direction. Scalar quantities only have magnitude, while vector quantities like force also have a specified direction in addition to size. This directional component of force is what distinguishes it as a vector quantity.