What defines a scalar quantity?
It is described by magnitude or numerical value alone.
What distinguishes displacement from distance?
Displacement has a specified direction, distance does not.
How is a vector geometrically represented?
By a directed line segment with a tail and an arrowhead.
When are two vectors equal?
When they have the same magnitude and direction.
Scalar quantity: description?
Fully described by magnitude only.
Vector quantity: description?
Described by magnitude and direction.
Vector representation: key feature?
Directed line segment from tail to arrowhead.
Equal vectors: condition?
Same magnitude and same direction.
Magnitude formula: for vector?
|a|=√(x² + y²).
Opposite vector: characteristic?
Same magnitude, opposite direction.
Vector addition law?
Triangle law: u+v=AC.
Answer 11 questions on Vectors in Two Dimensions.
1. Which feature is required to fully describe a vector quantity?
2. Which statement correctly distinguishes distance from displacement?
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