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2019 מועד סתיו - 42 - פרק ראשון- אנגלית
19. It can be inferred from the first paragraph that thermoluminescence -
(1) causes materials to absorb radiation
(2) converts sunlight into heat
(3) does not occur in all substances
(4) increases the temperature of crystalline minerals
20. The main purpose of the second paragraph is to -
(1) explain why Robert Boyle's experiments seem crude by today's scientific standards
(2) provide a scientific explanation of something once considered inexplicable magic
(3) describe the 1663 Royal Society of London conference on thermoluminescence
(4) discuss Robert Boyle's contribution to the understanding of thermoluminescence
21. The main purpose of the third paragraph is to -
(1) explain how radiation badges were invented
(2) describe how thermoluminescence is used to ensure worker safety
(3) compare the levels of radiation to which people in different occupations are exposed
(4) discuss safety procedures in the workplace
22. According to the last paragraph, thermoluminescence -
(1) increases the amount of radiation in clay objects
(2) is the process used to harden clay pots
(3) can only be used to date pottery from certain periods
(4) can be used to confirm the authenticity of clay artifacts
)© כל הזכויות שמורות למרכז ארצי לבחינות ולהערכה (ע"ר
. בלא אישור בכתב מהמרכז הארצי לבחינות ולהערכה- כולה או חלקים ממנה- או ללמדה,אין להעתיק או להפיץ בחינה זו או קטעים ממנה בכל צורה ובכל אמצעי
