The physical quantities which require magnitude as well as direction for their complete description are called __________.
(a) Scalars
(b) Vectors
(c) Both scalar and vector
(d)None of these
Which of the following is not a vector?
(a) Velocity
(b) Momentum
(c) Torque
(d) Work
Which of the following is a vector?
(a) Power
(b) Force
(c) Speed
(d) Mass
A letter with arrow head above or below it is used to represent _____________.
(a) Vector
(b) Scalar
(c) Both a and b
(d) None of these
Two lines drawn at right angle to each other are called coordinate axes and the system is called ___________.
(a) Cartesian system
(b) Rectangular coordinate system
(c) Cylindrical coordinate system
(d) Both a and b
The vectors in space are _____________.
(a) Two dimensional
(b) Three dimensional
(c) Four dimensional
(d) Un-dimensional
Y-axis is also called _____________.
(a) Abscissa
(b) Origin
(c) Ordinate
(d) None of these
The angle between the three axes of rectangular coordinate system is _________.
(a) 0°
(b) 45°
(c) 90°
(d)120°
Vectors can be added by _________________.
(a) Head to tail rule
(b) Rectangular components
(c) Both a and b
(d) None of these
Addition of vectors is _________________________________________________.
(a) Commutative and associative
(b) Commutative but not associative
(c) Associative but not commutative
(d) Neither commutative nor associative
A certain vector is multiplied by an integer ‘n’ and the product is a vector whose direction is opposite to the original vector. What do you deduce about ‘n’?
(a) n=0
(b) n<0
(c) n>0
(d) 0<n<1
A vector whose magnitude is zero and have any arbitrary direction is called ______________.
(a) Null vector
(b) Unit vector
(c) Equal vector
(d) Negative vector
Two vectors which are parallel to each other means they ________________.
(a) Must be equal
(b) May be equal
(c) May be unequal
(d) Both b and c