i. Which of the following is a scalar quantity?
(a) velocity (b) speed (c) torque (d) force
ii. Which of the following is a vector quantity?
(a) velocity (b) speed (c) distance (d) work
iii. If a and b are position vectors of points A and B respectively, then AB is:
(a) b + a (b) a - b (c) b - a (d) -b - a
iv. Which of the following is not a symbol of vector a?
(a) a (b) a/a (c) a (d) |a|
v. If OP = [-6,7], then -OP is equal to:
(a) [-6,7] (b) [6,7] (c) [6,-7] (d) [-6,-7]
vi. If u = -5i + 12j, then |u| is equal to:
(a) 17 (b) 7 (c) 169 (d) 13
vii. Given that u is any vector. Which of the following is true?
(a) |-u| = |u| (b) -|u| = |u| (c) |u| + |-u| = 0 (d) |u| = 0
viii. The unit vector of the vector u = 6i + 10j - 2j is:
(a) 3i/5 - 4j/5 (b) 3i/5 + 4j/5 (c) -3i/5 - 4j/5 (d) -3i/5 + 4j/5
ix. If a = λb, a = 12i - 18j, and b = -2i + 3j, then λ is equal to:
(a) 3 (b) -3 (c) 6 (d) -6
x. If u = [-5x,8] and v = [10,4y] are equal vectors, then:
(a) x = 2, y = 2 (b) x = -2, y = -2 (c) x = -2, y = 2 (d) x = 2, y = -2
xi. If p = [5,-6] and q = [2,6], then p - 2q is:
(a) [1,-18] (b) [9,18] (c) [1,18] (d) [-9,-18]
xii. If u = 5i + 10j and v = 4j, then |u - v| is:
(a) √123 (b) √61 (c) √11 (d) -√61
xiii. Which of the following vectors represents a position vector?
(a) OP (b) -OP (c) PO (d) PQ
xiv. What type of a quadrilateral ABCD is, if AB = 2/3 DC?
(a) kite (b) rectangle (c) trapezium (d) rhombus

I have Learnt and Miscellaneous Exercise 7