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Identify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree, and wind velocity.
- A Vector, scalar, scalar
- B Vector, scalar, vector
- C Scalar, scalar, vector
- D Scalar, vector, vector
That's Correct!
It's Wrong!
The mass of an object is a scalar quantity because it only has magnitude and no direction. The number of leaves on a tree is also a scalar quantity as it only represents a count and does not have any direction associated with it. Wind velocity, on the other hand, is a vector quantity because it has both magnitude (speed) and direction (the direction in which the wind is blowing).
