module 2

Question 1

Examples of quantities

Answer 1

distance,
displacement, speed, velocity, acceleration, force, mass, momentum, energy, work,
power,

Question 2

in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose
length is proportional to the quantity’s magnitude.

Answer 2

Vector,

Question 3

ordinary quantities that have a magnitude but not a direction are called

Answer 3

scalars.

Question 4

are often represented by scaled vector diagrams. Vector diagrams depict a vector by use of an arrow drawn to scale in a specific direction.

Answer 4

Vector quantities

Question 5

were introduced and used in earlier units to depict the

forces acting upon an object. Such diagrams are commonly called as free-body diagrams.

Answer 5

Vector diagrams

Question 6

The motion which occurs as

a consequence of two or more impulses is called

Answer 6

Resultant,

Question 7

the separate motions, which the impulses acting singly would have caused, are called

Answer 7

Components.

Question 8

is very important in many fields of engineering such as mechanical, civil, structural and electrical engineering.

Answer 8

Vector analysis

Question 9

the study of motion, without any reference to the forces that cause the motion. It basically means studying how things are moving, not why they’re moving. It includes concepts such as distance or displacement, speed or velocity, and acceleration, and it looks at how those values vary over time.

Answer 9

Kinematics

Question 10

kinematic analysis can be performed either analytically or graphically.

Answer 10

planar mechanisms,

Question 11

is based on projecting the vector loop equation(s) of a
mechanism onto the axes of a non-moving Cartesian frame. This projection transforms a
vector equation into two algebraic equations. Then, for a given value of the position (or
orientation) of the input link, the algebraic equations are solved for the position/orientation
of the remaining links.

Answer 11

Analytical kinematics

Question 12

is a systematic process that is most suitable for developing into a computer program. However, for very simple systems, it can be performed by hand calculation, even simple mechanisms can become a challenge for analysis without the use of a computer program.

Answer 12

Analytical kinematics

Question 13

is a collection of links that are
interconnected by kinematic joints forming a single degree-of-freedom system. Therefore,
in a kinematic analysis, the position, velocity, and acceleration of the input link must be
given or assumed (one coordinate, one velocity and one acceleration).

Answer 13

mechanism