Ex.2. Match the terms and their definitions. Compose 5 sentences with any of the terms.

1	assume	a	most important, main
2	coordinate (n)	b	the force that keeps an object in the same position or state of movement until it is moved or stopped by another force
3	describe	c	to think that sth is true, although you have no proof of it
4	locate	d	to continue to be in the same state or condition
5	inertia	e	to state sth in an exact and detailed way
6	principal (adj)	f	one of a set of numbers which give the exact position of a point on a map, computer screen etc
7	remain	g	complete and not divided or broken into parts
8	specify	h	to find the exact position of sth
9	whole	i	to say what sth or sb is like by giving details about them

Ex.3. Find in the text: 1) the nouns corresponding to the following verbs:

move, characterize, displace, refer

                            2) the verbs corresponding to the following nouns:

location, meaning, assumption, specification, description, treatment.

 

Ex.4. Translate into English.

1. Тело находится в состоянии покоя относительно данной системы координат, если координаты всех его точек не изменяются.

2. Задача кинематики - определить все кинематические характеристики движения тела в целом или его отдельных частей.

3. Движение – это относительное перемещение тела в пространстве относительно других тел с течением времени. 

 

Text 2. Methods of describing motion of a particle. Path.

Learn the following words and word combinations by heart: