Английский язык. Ч.3 (Units 9,10). Ильичева Н.А - 36 стр.

high speeds. Much more than that, it has changed the way we view the world.
The concepts of space and time are now seen to be relative, and intertwined
with one another, whereas before they were considered absolute and separate.
Even our concepts of matter and energy have changed: either can be converted
to the other. The impact of relativity extends far beyond physics. It has
influenced the other sciences, and even the world of art and literature: it has,
indeed, entered the general culture.


Vocabulary Practice


5. Look at the words in bold and try to explain them.


6. Fill in the appropriate word from the list below.
  Energy, space, description, wave, theory, principle, medium, interval,
mechanics, assumption, intervals, world.
1) classical…                          7) relativity…
2) accurate…                           8) time…
3) infinite…                            9) unprovable…
4) space…                              10) material…
5) transparent…                        11) electromagnetic…
6) absolute…                           12) successful…


7. Fill in the gaps with word combinations from the above exercise.
1. Light must travel in some … … called the ether.
2. Nineteenth-century physicists viewed the … … in terms of the laws of
   mechanics.
3. In the last half of the nineteenth century Maxwell presented his very … … of
  electromagnetism.
4. The … … between two events depends on the observer’s reference frame.
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