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A scalar measurement is one that requires only one number. For example, my mass is 82 kg. BUT some measurements require more than one number to specify. For example, a force on me has both a magnitude and a direction. Such things are called "vectors." Speed is a scalar quantity. I am going 35 km/hr, but velocity is a vector, which requires a magnitude, which is the speed, AND a direction. So my speed is 35 km/hr, but my velocity is 35 km/hr east.
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What type of measurement is this 45 apples?
This is a measurement of count or quantity, indicating the number of apples present. It is not a measurement of weight, volume, or length.
Why time is a scalar quantity?
Time is considered a scalar quantity because it does not have a direction associated with it. Scalar quantities only have magnitude, like a point on a number line. In contrast, vector quantities have both magnitude and direction.
What is speed a scalar or vector quantity?
scalar
Is length a scalar or vector?
Length is a scalar quantity. By definition, a vector quantity has both magnitude (ie. length) and direction. Length does not have direction, so it is not a vector. Length is a scalar quantity. Length is a scalar quantity. yes
Is potential gradient vector or scalar?
The potential gradient is a vector quantity. It represents the rate of change of the scalar electric potential with respect to position in space.
