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Science 30 January 2000 Diploma Examination

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The exploration of space adds to our knowledge of the universe and has produced<br />

a number of theories about it.<br />

9. According to the steady state theory and the big bang theory, the universe is<br />

expanding. Evidence supporting the theory of an expanding universe is that the<br />

electromagnetic radiation collected from distant galaxies<br />

A. undergoes red shift<br />

B. undergoes blue shift<br />

C. is emitted in a wide range of frequencies<br />

D. is emitted in a narrow range of frequencies<br />

10. In a recent space shuttle experiment, power was produced by pulling a very long<br />

conducting wire behind the shuttle through Earth’s magnetic field. The<br />

phenomenon that was being studied likely involved the<br />

A. creation of a magnetic field through induction<br />

B. interaction of electrical and gravitational fields<br />

C. interaction of magnetic and gravitational fields<br />

D. creation of an electrical current through induction<br />

11. Objects sent into orbit around Earth are known as artificial satellites. Natural<br />

satellites orbiting around planets are known as<br />

A. moons<br />

B. galaxies<br />

C. constellations<br />

D. solar systems<br />

5

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