Classify the following measurements as scalar of vector quantities.
A.) 15 s
B.) 4.2 m ( up)
C.) 100 km/h (S)
D.) 2.8 kg
All are scalars accept for C.
But double check this.
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A.) 15 s - Scalar quantity.
B.) 4.2 m (up) - Vector quantity.
C.) 100 km/h (S) - Scalar quantity.
D.) 2.8 kg - Scalar quantity.
To determine whether each measurement is a scalar or a vector quantity, we need to understand the definitions of these terms.
1. Scalar Quantity: A scalar quantity is a physical measurement that only has magnitude, or size. It does not have a direction associated with it.
2. Vector Quantity: A vector quantity is a physical measurement that has both magnitude and direction.
Now let's classify each measurement:
A.) 15 s
The measurement of 15 seconds is a scalar quantity. It only represents the magnitude or size of the time duration, without any associated direction.
B.) 4.2 m (up)
The measurement of 4.2 meters (up) is a vector quantity. Here, the direction "up" indicates that the distance is not only along the magnitude of 4.2 m, but also in a specific direction.
C.) 100 km/h (S)
The measurement of 100 kilometers per hour (S) is a vector quantity. The inclusion of the direction "S" (South) indicates that the speed has both magnitude (100 km/h) and a specific direction.
D.) 2.8 kg
The measurement of 2.8 kilograms is a scalar quantity. Mass is a scalar quantity as it only represents the magnitude or size of the matter being measured.
Remember that to classify a measurement as scalar or vector, we need to determine whether it has direction along with its magnitude.