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* 1. What is your IDATA teacher's name?

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* 2. What is your Skynet Junior Scholars (SJS) Login or User name?

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* 3. Approximately how many Moons would fit between the Earth and the Moon?

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* 4. Which of the following rankings is correct for the size (width) of the following objects from smallest to largest?

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* 5. The Sun is about how many times farther away from the Earth than the Moon is from the Earth?

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* 6. Alpha Centauri A is the closest star to the sun. How would the brightness of Alpha Centauri A change if observed from Earth and then from Pluto?

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* 7. (Complete the sentence.) From the northern hemisphere on Earth, stars in the night sky, on any given night....

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* 8. (Complete the sentence.) From the southern hemisphere on Earth, stars in the night sky, on any given night....

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* 9. (Complete the sentence.) From the northern hemisphere on Earth, asteroids in the night sky, on any given night....

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* 10. Standing on the Earth’s equator, a star directly overhead would appear to move across the night sky at a rate of about how many degrees per hour? (Please select the best response.)

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* 11. Standing on the Earth’s equator, an asteroid located in the Asteroid Belt that appears directly overhead would appear to move across the night sky at a rate of about how many degrees per hour? (Please select the best response)

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* 12. Which of the following is not a form of light?

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* 13. Which of the following travels slowest through space?

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* 14. Which of the following has the shortest wavelength?

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* 15. Consider the 3 stars described below.
  • Star X gives off most of its energy at a wavelength of 400 nanometers. 
  • Star Y gives off most of its energy at a wavelength of 800 nanometers. 
  • Star Z gives off most of its energy at a wavelength of 600 nanometers. 
Which star is the coolest?

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* 16. A photon of which color of light carries the most energy?

The following diagram represents three electromagnetic waves emitted simultaneously by the Sun. Use this diagram to answer the next 2 questions. 

The picture shows three wave forms. All three cover the same distance across the screen. Wave 1 shows a single wave cycle (1 peak and 1 trough) in that distance and is about 1 inch high. Wave 2 shows two wave cycles (2 peaks and 2 troughs) in that distance and is about 2 inches high. Wave 3 shows four wave cycles (4 peaks and 4 troughs) in that distance and is about half and inch high.

The picture shows three wave forms. All three cover the same distance across the screen. Wave 1 shows a single wave cycle (1 peak and 1 trough) in that distance and is about 1 inch high. Wave 2 shows two wave cycles (2 peaks and 2 troughs) in that distance and is about 2 inches high. Wave 3 shows four wave cycles (4 peaks and 4 troughs) in that distance and is about half and inch high.

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* 17. Which wave represents electromagnetic radiation with the highest energy?

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* 18. Which wave will arrive first at a satellite orbiting just above the Earth’s atmosphere?

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* 19. The coolest stars emit most of their energy in which portion of the electromagnetic spectrum?

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* 20. Asteroids emit most of their energy in which portion of the electromagnetic spectrum?

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* 21. (Select the best response to complete the sentence.) The majority of an asteroid is composed of....

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* 22. You are investigating a comet and an asteroid, and you determine they are identical in mass, and are traveling at the same speed, which object would release more energy upon impact with planet Earth?

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* 23. The star Moto has an apparent magnitude of +1.0 and an absolute magnitude of +3.0. If it were moved 10 times farther from Earth as compared to where it is now, which one of the following would occur?

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* 24. (Complete the sentence.) The main asteroid belt is located between the orbits of....

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* 25. (Complete the sentence.) A rocky leftover planetesimal orbiting the Sun is....

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* 26. Why isn't there a planet where the asteroid belt is located?

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* 27. What is a meteor?

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* 28. (Complete the sentence.) A change in an asteroid’s apparent brightness over time is normally caused by....

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* 29. (Complete the sentence.) The position in the orbit of an asteroid when it is farthest from the sun is called....

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* 30. Some telescopes are placed in space above Earth’s atmosphere primarily for which of the following reasons?

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* 31. (Complete the sentence.) The aperture of a telescope refers to....

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* 32. Telescope A is 0.5 meter in diameter, and telescope B is 1.0 meter in diameter. All other things being equal, which of the following statements is true?

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* 33. What is the difference between a refracting telescope and a reflecting telescope?

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* 34. How are computers used in astronomy today? Please describe as many different ways as you can think of.

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