Question

1. _____________ is the movement of an object from one point to another.

a) curvilinear
b) rotatory
c) translatory
save

1. _________ motion is motion in a circular path around a fixed axis.

a) curvilinear
b) rotatory
c) translatory
save

1. an example of ________ motion is the plucking of a guitar string.

a) vibratory
b) rotatory
c) translatory
save

1. a ball falling from a height is an example of linear motion.

true
false

Explanation:

Question 18

Translatory motion is defined as the movement of an object from one point to another (it can be along a straight or curved path, but the key is the object's position changes from one point to another). Curvilinear is a type of translatory but the question is about the general movement from one point to another, and rotatory is circular around an axis, not moving from one point to another in translation. So the correct option is Translatory.

Rotatory motion is motion in a circular path around a fixed axis (like a fan rotating around its axis). Curvilinear is translatory along a curved path, not around an axis. Translatory is movement from one point to another, not circular around an axis. So the correct option is Rotatory.

Plucking a guitar string causes it to vibrate back and forth, which is vibratory motion. Rotatory is circular around an axis, and translatory is movement from one point to another, neither of which describe a guitar string's motion when plucked. So the correct option is vibratory.

Answer:

C. Translatory

Question 19