Test question 13.1

Test question 13.1 • Landscape of Pluto was mapped by • xDirectimaging from the ground with laser guide • xVoyagerspace craft • vLightvariations during eclipse transit by Charon • xRadar

Test question 13.2 • Pluto was recently classified as a dwarf planet because • xItis much further out than normal planets • xItsmass and radius are much smaller than normal planets • xTheyare several Kuiper Belt objects with similar properties • vAllof the above

Test question 13.3 • Kuiper Belt objects are: • xCapturedmaterial from the interstellar medium • xEscapedmoons around planets • xRemains of gas giant planets which lost most of their gas • vRelicsof primitive planetesimals

Test question 13.4 • Kuiper Belt objects are found with: • xMeasureof their Doppler effects • vSearchfor objects which move slightly within a given night • xTakingspectra of faint objects at night • xInterplanetaryspace probes

Test question 13.5 • Comets are thought to have formed much further out from the Sun than planets because • xTheyare dirty snow balls • xTheyhave very long periods • xTheybreak up easily when venture into the inner solar system • vAllof the above

Test question 13.6 • A recently discovered Comet Tosis has a period 8 times that of Comet Halley. The semi major axis of Tosis is • x1/8 that of Comet Halley • xSameas Comet Halley • v4 times that of Comet Halley • x8 times that of Comet Halley

Test question 13.1

Test question 13.1

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13.1

13.1

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