AST 191 Study Guide..docx - Final Study Guide AST 191 Test 1 Chapters 1-3 1 Which of the following statements does NOT use the term angular size or

# AST 191 Study Guide..docx - Final Study Guide AST 191 Test...

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Final Study Guide AST 191 Test 1 Chapters 1-3 1. Which of the following statements does NOT use the term angular size or angular distance correctly? The angular distance between those two houses in the distance is 30 degrees. The angular size of the Sun is about the same as that of the Moon. The angular distance between those two bright stars in the sky is about 2 meters. You can use your outstretched hand against the sky to estimate angular sizes and angular distances. 2. The following angles are given in degrees and fractions of degrees. Rewrite them in degrees, arcminutes, and arcseconds. 24.8 = 24 48 0 / 1.58 ′′ = 1 34 48 / 0.1 ′′ = 0 6 0 / 0.01 ′′ = 0 0 36 / ′′ 0.001 ∘ = 0 0 3.6 ′′ 3. Scientific theories can never be proved true beyond all doubt. T/F True 4. Our solar system is located in the center of the Milky Way Galaxy. T/F False 5. If Earths orbit were a perfect circle, we would not have seasons. T/F False . Explain: That would just mean we are a constant distance from the sun. The main cause of the seasons is the tilt of the Earths spin axis. 6. Two stars that are in the same constellation: must both be part of the same cluster of stars in space. must both have been discovered at about the same time. may actually be very far away from each other. 7. In what way is scientific thinking natural to all of us, and how does modern science build upon this everyday type of thinking? Scientific thinking has three components empiricism, rationalism, and skepticism. People get offers daily in which we use scientific thinking. Let’s take an example of a mailer about winning a free car just take the key to the lot. The evidence would be the physical key they sent you in the mail. You follow that with the

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• Victor Taveras

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