PRACTICE

Date: 2015-10-07; view: 622.

Passive Aspect

carefully-conducted experiment

regularly-made observation

abruptly-activated behavior

well-equipped laboratory

negatively charged particle

the experiment that is conducted carefully

the observation that is made regularly

the behavior that is activated abruptly

the laboratory which is equipped well

the particle that is negatively charged

Exercise 1:Form compound adjectives from participles, basing on the following explanations

1. the objects that oscillate freely

2. the device that sounds echo

3. the devices which are used to conduct experiments

4. the analyzer which describes in detail

5. the students who work industriously

6. the device which is used to develop film

7. the graph that slopes upwards

8. the pole that points to the south

9. the system that transfers energy

10. the matter which is discussed heatedly

11. the waves that interfere destructively

12. a report that is well presented

13. the particles that move fast freely-oscillating objects

14. the capacitor that is made of silver

15. a current that decreases gradually

16. a ball that is thrown horizontally

17. a body that falls freely

18. the anode which is negatively charged

19. a magnetic field which is created by electromagnetic coils

20. the device which is used for removing water

Exercise 2: Fill in each of the gaps to complete the passage. Each word is used once.

distinct light because attract photons experiments

protons the electromotive work same nevertheless particles forces quantum mathematically actually absorbed experiences. For centuries, electricity and magnetism seemed (1)…………..forces. In the 1800s, however (2)…………… showed many connections between these two(3)………….. In 1864

British physicist James Clerk Maxwell drew together the (4) …………of many physicists to show that electricity and magnetism are(5) ……………different aspects of the (6)……………electromagnetic force. This force causes (7)……………with similar electric charges to repel one another and particles with opposite charges to (8)…………….one another. Maxwell also showed that (9)………….is a traveling form of electromagnetic energy. The founders of (10)……………..mechanics took Maxwell's work one step further. In 1925 German-British physicist Max Born, and German physicists Ernst Pascual Jordan and Werner Heisenberg showed (11)………………..that packets of light energy, later called (12)……………, are emitted and (13)…………….when charged particles attract or repel each other through the electromagnetic force.