Scalar And Vector Quantities - SS1 Physics Past Questions and Answers - page 2
Define Vector Quantities with suitable examples.
A vector quantity is a physical quantity that has both magnitude and direction. In addition to the numerical value or magnitude, vectors also have a specific direction in space. Examples include displacement, velocity, acceleration, force, momentum, and electric field.
Which of the following is not a means by which we differentiate between Scalars and Vectors?
Magnitude
Direction
Representation
Numerical value
Scalars ____ direction while Vectors____ direction.
Have, do not have
Do not have, have
Have, sometimes have
Never have, sometimes have.
Both Scalars and Vectors can undergo ordinary arithmetic operations.
True
Depending on the desired operation
False
Depending on the magnitude
Differentiate Scalars and vectors based on Mathematical operations.
Scalars can be added, subtracted, multiplied, and divided using ordinary arithmetic operations. Vectors, however, require special mathematical operations called vector addition and subtraction to account for both magnitude and direction. Vector operations consider both the numerical values and the spatial orientation of vectors.
What is the importance of the knowledge of Scalars and Vectors?
Understanding the distinction between scalars and vectors is crucial in physics, as it affects how we describe, analyze, and manipulate quantities in various mathematical and physical contexts.
When two vectors are added, the resultant vector is maximum when:
The two vectors have the same direction.
The two vectors have opposite directions.
The two vectors are perpendicular to each other.
The two vectors have different magnitudes.
When two vectors are subtracted, the resultant vector is minimum when:
The two vectors have the same direction.
The two vectors have opposite directions.
The two vectors are perpendicular to each other.
The two vectors have different magnitudes.
The subtraction of vectors A and B is equivalent to the addition of vector B:
To the negative of vector A.
To the opposite direction of vector A.
To the sum of vector A and vector B.
To the difference of vector A and vector B.
Two vectors with magnitudes of 5 units and 3 units are added together. The maximum magnitude of their resultant vector can be:
2 units
3 units
5 units
8 units