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

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

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

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

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

* 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?

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

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

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

* 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.)

* 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)

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

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

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

* 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?

* 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 an inch high.

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

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

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

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

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

* 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?

* 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?

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

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

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

* 27. What is a meteor?

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

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

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

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

* 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?

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

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

T