Basic Mathematics & Vector

BASIC MATHEMATICS & VECTOR

CHAPTER END TEST (CET) Physics TEST

Basic Mathematics & Vector Chapter End Test

Scalars Vs. Vectors :Physical quantities are divided into 2 categories
(a) Scalar
(b) Vectors
Scalars : The quantities which have only magnitude and which are not related to any fixed
direction in space.
ex. distance.
Vectors : The quantities which have both
(i) magnitude &
(ii) direction
ex. displacement.
Note : Scalars are just real numbers & hence are added, subtracted, multiplied etc. like numbers.

Which of the following statements is false :
(1) Mass, speed and energy are scalars
(2) Momentum, force and torque are vectors
(3) Distance is a scalar while displacement is a vector
(4) A vector has only magnitude whereas as a scalar
has both magnitude and direction
18. The forces, which meet at one point but their lines
of action do not lie in one plane, are called :
(1) non-coplanar and non-concurrent forces
(2) coplanar and non-concurrent forces
(3) non-coplanar and concurrent forces
(4) coplanar and concurrent forces
19. Which of the following physical quantities is an axial
vector ?
(1) displacement (2) force
(3) velocity (4) torque
24 . The minimum number of vectors of equal magnitude
required to produce a zero resultant is :
(1) 2
(2) 3
(3) 4 
(4) more than 4

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