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practice post test #2 Study Guide Solutions Updated 2024

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practice post test #2 Study Guide Solutions Updated 2024 Select the correct answer from each drop-down menu. The distance between Earth and Mars is 225 million km. When converted using the conversion factor 1 AU = 1.5 × 108 km, the distance between the planets is [0.2 AU/1.5 AU/2.0 AU]. The a...

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  • November 19, 2024
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practice post test #2 Study Guide
Solutions Updated 2024

Select the correct answer from each drop-down menu.




The distance between Earth and Mars is 225 million km. When converted using the

conversion factor 1 AU = 1.5 × 108 km, the distance between the planets is [0.2 AU/1.5

AU/2.0 AU]. The astronomical unit (AU) is [shorter than/longer than/the same as] a

light-year. - ANSWER✔✔-1.5 AU


SHORTER THAN


Drag each tile to the correct location.


A scientist is studying the light emitted by several celestial objects. He records the shifts

in each object's spectral lines (in nm). Based on these measurements, determine whether

each object is moving TOWARD or AWAY from Earth.


Use the LINK for the diagram of the visible light spectrum to help you.




400 nm shifted to 430 nm



Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 1/30

,610 nm shifted to 580 nm


512 nm shifted to 480 nm


670 nm shifted to 690 nm




https://cdn.app.edmentum.com/EdAssets/b9d99084338a4dbf9c9ed79f1049bf8c?ts=636

232334357600000 - ANSWER✔✔-TOWARD:610 nm shifted to 580 nm AND 512 nm

shifted to 480 nm




AWAY:400 nm shifted to 430 nm AND 670 nm shifted to 690 nm


Match the tools with the advantages they offer to astronomers.


photography


space telescope


radio telescope


optical telescope




detects electromagnetic frequencies outside the visible spectrum that reaches Earth


captures images that can be shared and compared by scientists


obtains a magnified and clear view of a part of the sky to observe celestial objects

Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 2/30

, allows access to images taken from outsideEarth's atmosphere - ANSWER✔✔-SPACE

TELESCOPE:allows access to images taken from outsideEarth's atmosphere


PHOTOGRAPHY:captures images that can be shared and compared by scientists


OPTICAL TELESCOPE:obtains a magnified and clear view of a part of the sky to

observe celestial objects


RADIO TELESCOPE:detects electromagnetic frequencies outside the visible spectrum

that reaches Earth


Arrange the events of the big bang in sequential order.




The first neutral atoms form. The universe is transparent.




Atomic nuclei form. Hydrogen fuses into helium.




The universe comes into existence as a single point.




Gases form that will later go on to shape the stars and galaxies.




Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 3/30

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