Math 12 Chapter 7VectorsTest - 1

Math 12 Chapter 7
Vectors
Test - 1

1. A vector quantity has a magnitude as well as __________________

a) Direction
b) Magnitude
c) Volume

2. A scalar quantity is only defined by its________________

a) Volume
b) Magnitude

3. If A & B are any two points then its magnitude is ______________________

a) ��^®AB��
b) ��^®AB��
c) ��^®AB��

4. A unit vector has magnitude equal to _________________

a) 2
b) 3
c) 1
d) 4

5. Two vectors ^®AB & ^®CD are said to be equal if their Magnitudes are equal as well as their directions are _________________

a) Different
b) Equal
c) Same

6. If 0 is the origin and p(x,y) is any paint in the plane then the position vector OP =

a) xi + yj
b) yj + xi

7. If ^®AB & ^®BC are any two vectors acting along two sides of the triangle ABC then their resultant is equal to _________________

a) 3rd side of a triangle but in opposite direction
b) 3rd side of a triangle but in the same direction
c) 2nd side of a triangle but in opposite direction

8. If ^® r= xi + yj then its magnitude is equal to �� r ��

a) �� r �� = Öx³+y²
b) �� r �� = Öx²+y²
c) �� r �� = Öx⁴+y²

9. ^®r = xi + yj then the unit vector r = ________________

a) �� r �� / r
b) �� r �� r /
c) r / �� r ��

10. If 0 is the origin and p(x, y, z) is any point in the space then OP = _______________________

a) ^®O = xi + yj + zk
b) ^®P = xi + yj + zk
c) ^®OP = xi + yj + zk

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