# Учебно-методическое пособие по чтению специальной литературы для студентов 1 курса физического факультета. Дроздова И.В - 12 стр.

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12
Discussion
I. In small groups of students act out the following situation: a school teacher
explains three laws of motion in plain English, giving his/her own examples.
The pupils are rather inquisitive, asking the teacher numerous questions.
II. You are a man of science. Explain the following:
a) An old party trick is to pull a tablecloth from beneath dishes and glasses on a
table. How this trick can be done without upsetting or pulling the dishes and
glasses with the cloth?
b) Explain the kick of a rifle or shotgun in terms of Newtons third law. Do the
masses of the gun and the bullet or shot make a difference?
III. In pairs discuss the following:
a) the principle of automobile seat belts in terms of Newtons first law.
b) A 10-kg rock and a 1-kg rock are dropped simultaneously from the same height.
Some say that because the 10-kg rock has 10 times as much force acting on it, it
should reach the ground first. Do you agree? Describe the situation if the rocks
were dropped by an astronaut on the moon.
Unit III
Newton and the Reflecting Telescope
Have you got any idea of how telescopes work and how they are constructed?
1. What is the main purpose of the telescopes?
A. to examine foreign objects
B. to magnify distant objects
C. to reflect object images
D. to collect light waves
2. Add more words describing telescopes and their construction
eyepiece Telescope object lens
                                         12

Discussion

I.    In small groups of students act out the following situation: a school teacher
explains three laws of motion in plain English, giving his/her own examples.
The pupils are rather inquisitive, asking the teacher numerous questions.

II.    You are a man of science. Explain the following:
a) An old party trick is to pull a tablecloth from beneath dishes and glasses on a
table. How this trick can be done without upsetting or pulling the dishes and
glasses with the cloth?
b) Explain the kick of a rifle or shotgun in terms of Newton’s third law. Do the
masses of the gun and the bullet or shot make a difference?

III. In pairs discuss the following:
a) the principle of automobile seat belts in terms of Newton’s first law.
b) A 10-kg rock and a 1-kg rock are dropped simultaneously from the same height.
Some say that because the 10-kg rock has 10 times as much force acting on it, it
should reach the ground first. Do you agree? Describe the situation if the rocks
were dropped by an astronaut on the moon.

Unit III

Newton and the Reflecting Telescope

Have you got any idea of how telescopes work and how they are constructed?
1. What is the main purpose of the telescopes?
A. to examine foreign objects
B. to magnify distant objects
C. to reflect object images
D. to collect light waves

2. Add more words describing telescopes and their construction

eyepiece         Telescope           object lens