Английский язык. Ч.3 (Tests 10,11,12). Ильичева Н.А - 12 стр.

10. Certain … assumptions make sense from everyday experience (unprovable,
   unverifiable, unchecked).

C. Fill in the correct word derived from the words in brackets
1. Two events are said to occur … (simultaneous) if they occur at … (exact) the
   same time.
2. Einstein concluded that the … (consistent) he found in electromagnetic theory
   were due to the … (assume) that an absolute space exists.
3. This … (propose) was embodied in two postulates.
4. … (long) contraction, like time … (dilate), is not noticeable in everyday life.
5. Somehow we feel, just as physicists did before the advent of … (relative), that
   space and time are … (complete) separate entities.
6. Before Galileo, the vertical … (direct), that in which objects fall, was
   considered to be … (distinct) different from the two horizontal dimensions.
7. We have recognized the … (valid) of this principle in everyday life.
8. In classical mechanics the … (measure) of space and time doesn’t change
   from one reference frame to another.
9. We can conclude that … (simultaneous) is not an absolute concept.
10. The effect is … (notice) only when the relative speed of the two reference
   frames is very large.

D. Choose the right word from the list to fill in the spaces
Mind, light, set of coordinates, at rest, relative, unaccelerated, relativity,
observer, spatial, absolute, definition, in motion, fixed, view.

   The 20th century saw remarkable developments in the theory of a) … These
developments have been responsible for profound changes in the way that
physicists, astronomers and mathematicians b) … the world.
   The special theory of relativity is best known as a description of how objects
behave when they travel with speeds near that of c) … It leads to an
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