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Question 1 of 10 1.0 Points What follows is a fill in the blank question with 1 blanks. When discussing the true brightness of a star, we refer to its intrinsic brightness. Answer Key:intrinsic Question 2 of 10 1.0 Points Which of the following is not one of the Three Pillars of Proof for the Big Bang Theory?  A. The abundance of light elements  B. Binary star systems  C. Cosmic Microwave Background characteristics  D. Recession of stars Answer Key:B Question 3 of 10 1.0 Points What follows is a fill in the blank question with 1 blanks. An substance that cannot be broken down to anything simpler by chemical means is called a(n) element . Answer Key:element Question 4 of 10 1.0 Points What follows is a fill in the blank question with 1 blanks. Our closest neighbouring spiral galaxy is the andromeda Galaxy. Answer Key:Andromeda Question 5 of 10 1.0 Points The reason there are usually more clouds in the sky rather than on the ground is because  A. We just don’t “see” the clouds on the ground because we’re at the same level.  B. There is more water vapour higher in the atmosphere  C. The air is thinner higher in the atmosphere  D. The temperature is cooler higher in the atmosphere Answer Key:D Question 6 of 10 1.0 Points A light-year is the length of time it takes light to travel from Earth to the Sun. True False

Answer Key:False Question 7 of 10 1.0 Points If we want to see what the Sun would have looked like at its formation, we can look at  A. T Tauri Stars  B. Pulsars  C. Neutron stars  D. White Dwarf stars Answer Key:A Question 8 of 10 1.0 Points Our galaxy is  A. A spiral galaxy  B. an elliptical galaxy  C. an irregular galaxy  D. a barred galaxy Answer Key:A Question 9 of 10 1.0 Points What follows is a fill in the blank question with 1 blanks. An educated guess, based on observation is called a(n) hypothe . Answer Key:hypothesis Question 10 of 10 1.0 Points What follows is a fill in the blank question with 1 blanks. Isotopes are atoms of the same element that have different numbers of neutrons . Answer Key:neutrons Question 1 of 10 1.0 Points Edwin Hubble made many contributions to space science. Which of the following number among his noteworthy contributions [select all that apply]? A. Showing that the Sun does not revolve around the Earth B. Proving that the universe is expanding C. Showing that there are multiple galaxies in the universe

D. Discovering the Helios Delta star system E. Developing a way to measure distances in space Answer Key:B, C, E Question 2 of 10 1.0 Points Northern lights (aurora borealis) are a result of Earth's interaction with Moon's gravitational pull. False True Answer Key:False Feedback:The northern lights are caused by charged particles entering the Earth's atmosphere! Question 3 of 10 1.0 Points An ion has an equal number of protons and electrons. True False Answer Key:False Feedback:An ion can be positive or negative. A positive ion has fewer electrons than protons, and a negative ion has a greater number of electrons than protons. Question 4 of 10 1.0 Points When Sun eventually runs out of hydrogen fuel, it will likely next become a  A. Black hole  B. Red Giant  C. Blue Dwarf  D. Red Dwarf Answer Key:B Question 5 of 10 1.0 Points The age of the universe is [select all that apply!] A. 13.8 billion years old.

B. 13.8 million years old. C. 13,800,000,000 years old. D. 13,800,000 years old. Answer Key:A, C Feedback:13.8 billion years is 13,800,000,000 years. Question 6 of 10 1.0 Points Hypothetically, if the universe was spherical in shape, it would be [select all answers that apply!]: A. an "open" system B. finite in size C. a "closed" system D. infinite in size Answer Key:B, C Question 7 of 10 1.0 Points Which of the following is true (select ALL true answers!) A. A seagull flying towards a foghorn hears a higher pitched foghorn blast than one flying away B. "Blue Shift" light is emitted by a body that is receding from the observer C. Infrared light has a lower frequency than ultraviolet light Answer Key:A, C Question 8 of 10 1.0 Points The group of stars encircled by the white oval on the Hertzsprung-Russel diagram are the  A. Giants  B. Main Sequence  C. Supergiants  D. White Dwarfs Answer Key:D Question 9 of 10

1.0 Points Which of the following statements is true?  A. Stars that are further away always appear more dim than closer stars.  B. The "colour" of a star is related to its distance.  C. The luminosity ("intrinsic brightness") of stars decreases with distance from the observer.  D. The difference between the measured ("apparent") brightness of a star and its intrinsic brightness allows you to calculate its distance. Answer Key:D Feedback:Be careful not to confuse 'apparent brightness' and 'intrinsic brightness', or luminosity. As an analogy, intrinsic brightness is like the 100 watt rating on a light bulb: wherever you stand in the room, the light bulb is still a 100W bulb. But, the apparent brightness (the light that actually enters your eye) is smaller when you stand further away. A dim light could be a 100W bulb viewed from afar, or it could be a close-by 20W bulb. If we know (from its colour) that it's a 100W bulb, then we can figure out how far away it must be. Question 10 of 10 1.0 Points The Orion Arm is part of which local group galaxy?  A. Milky Way  B. Andromeda  C. Triangulum Answer Key:A Question 1 of 10 1.0 Points Which of the following is a telescope located in orbit around Earth?  A. Canada-France-Hawaii Telescope  B. Hubble Space Telescope  C. Galileo Telescope  D. Castle of the Heavens Telescope

Answer Key:B Question 2 of 10 1.0 Points Which of the following is not a terrestrial planet?  A. Saturn  B. Earth  C. Mercury  D. Mars Answer Key:A Question 3 of 10 1.0 Points The most abundant element in the Sun is helium. True False Answer Key:False Question 4 of 10 1.0 Points What follows is a fill in the blank question with 1 blanks. The photosphere is the visible outer layer of a star. Answer Key:photosphere Question 5 of 10 1.0 Points Pluto is now classified as a proto-planet. True False Answer Key: False Question 6 of 10 1.0 Points

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