Английский язык. Ильичева Н.А - 6 стр.

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Vocabulary Practice
4. Look at the words in bold and try to explain them.
5. Match the words to the opposites.
1. fast A. centrifugal
2. downward B. same
3. uniform C. interrupted
4. outward D. irregular
5. continuous E. changeable
6. opposite F. upward
7. constant G. slow
8. centripetal H. inward
6. Fill in the correct words from the list below:
average, distinct, straight-line, basic, continuous, frictional, scalar, total,
opposite, centripetal
1. ……… motion 6. ………. direction
2. ……… change 7. ……….. distance
3. ……… quantity 8. ………. effects
4. ………. meanings 9. ………. acceleration
5. ………. speed 10. …… difference
7. Fill in the correct word combination from the above exercise.
1. If a car travels 240 kilometres in 3 hours, we say its …… ……. is 80 km/h.
2. If you swing a ball on a string in a horizontal curve around your head, you
must pull inward to supply the necessity .. .. to keep the ball in a circular
path.
3. Galileos principle concerning the same acceleration of falling objects is true
if .. .. are negligible.
4. When an object is undergoing a .. .. in position, we say that it is moving.
5. .. .. is one dimensional motion.
6. Speed is a .. .. and velocity is a vector quantity.
7. In physical science the terms speed and velocity have .. .. .
8. The .. .. between scalars and vectors is that a vector quantity has only
magnitude and a scalar quantity has magnitude and direction.
9. An object slows down if its velocity and acceleration are in .. .. s.
10. The average speed of an object is the .. …… travelled divided by the time
spent in travelling.
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Vocabulary Practice

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

5. Match the words to the opposites.

1. fast                                     A. centrifugal
2. downward                                 B. same
3. uniform                                  C. interrupted
4. outward                                  D. irregular
5. continuous                               E. changeable
6. opposite                                 F. upward
7. constant                                 G. slow
8. centripetal                              H. inward

6. Fill in the correct words from the list below:
   average, distinct, straight-line, basic, continuous, frictional, scalar, total,
   opposite, centripetal

1. ……… motion                               6. ………. direction
2. ……… change                               7. ……….. distance
3. ……… quantity                             8. ………. effects
4. ………. meanings                            9. ………. acceleration
5. ………. speed                               10. ……… difference

7. Fill in the correct word combination from the above exercise.
1. If a car travels 240 kilometres in 3 hours, we say its …… ……. is 80 km/h.
2. If you swing a ball on a string in a horizontal curve around your head, you
   must pull inward to supply the necessity ….. ….. to keep the ball in a circular
   path.
3. Galileo’s principle concerning the same acceleration of falling objects is true
   if ….. ….. are negligible.
4. When an object is undergoing a ….. ….. in position, we say that it is moving.
5. ….. ….. is one – dimensional motion.
6. Speed is a ….. ….. and velocity is a vector quantity.
7. In physical science the terms “speed” and “velocity” have ….. ….. .
8. The ….. ….. between scalars and vectors is that a vector quantity has only
   magnitude and a scalar quantity has magnitude and direction.
9. An object slows down if its velocity and acceleration are in ….. ….. s.
10. The average speed of an object is the ….. …… travelled divided by the time
   spent in travelling.