Math 12 Chapter 7VectorsTest - 12

Math 12 Chapter 7
Vectors
Test - 12

1. Work Done =……………..

a) F . d
b) F . r
c) r . d
d) None of these

2. U, V and Ware Coplanar if (U x V) . w = …………………..

a) 0
b) Л / 3
c) Л / 2
d) Л / 4

3. Volume of tetrahedron = ………………….

a) ½ (u x v).w
b) ¼ (u x v).w
c) 1 / 3 (u x v) .w
d) 1 / 6 (u x v). w

4. If K is +ve, then V and kv are in the ……. Direction

a) Opposite
b) Same
c) Upward
d) downward.

5. The vector whose initial point is the origin 0 and terminal point is P is called
the ----------- vector.

a) Unit
b) Position
c) Zero vector
d) None

6. U x U = ………………….

a) - U
b) U
c) 0
d) 1

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