Astronomy1: Midterm 3 Practice Exam True/False (+2 points each) Indicate whether the sentence or statement is true or false. On your scantron mark A for true and B for false. ____ 1. Light is both a particle and a wave. ____ 2. Blue has more energy than red light. ____ 3. The Sun rotates faster at the equator than at the poles. ____ 4. When the frequency of the light increases, the energy increases. Multiple Choice (+2 points each) Identify the letter of the choice that best completes the statement or answers the question. ____ 5. What percentage of the mass of our Solar System is the Sun? a. 25.45% b. 70.57% c. 99.85% d. 49.95% ____ 6. Which of the following forms of radiation has the highest energy and is completely blocked by the Earth’s atmosphere? a. gamma rays b. ultra-violet c. microwave d. visible light e. radio ____ 7. When a low density gas is heated up and only a few wavelengths are bright, it is called a/an: a. emission line spectrum b. absorption line spectrum c. continuous spectrum ____ 8. What type of radiation does our Sun mostly produce? a. infrared b. gamma rays c. white light d. ultraviolet e. radio ____ 9. Who was the first to prove that white light is the sum of all wavelengths? a. Galileo Galilei b. Annie Cannon c. Isaac Newton d. Albert Einstein ____ 10. In the nuclear fusion of hydrogen, when 4 hydrogen atoms combine, they form a. iron b. oxygen c. carbon d. helium
Astronomy1: Midterm 3 Practice Exam True/False (+2 points each) Indicate whether the sentence or statement is true or false. On your scantron mark A for true and B for false. ____ 1. Light is both a particle and a wave. ____ 2. Blue has more energy than red light. ____ 3. The Sun rotates faster at the equator than at the poles. ____ 4. When the frequency of the light increases, the energy increases. Multiple Choice (+2 points each) Identify the letter of the choice that best completes the statement or answers the question. ____ 5. What percentage of the mass of our Solar System is the Sun? a. 25.45% b. 70.57% c. 99.85% d. 49.95% ____ 6. Which of the following forms of radiation has the highest energy and is completely blocked by the Earth’s atmosphere? a. gamma rays b. ultra-violet c. microwave d. visible light e. radio ____ 7. When a low density gas is heated up and only a few wavelengths are bright, it is called a/an: a. emission line spectrum b. absorption line spectrum c. continuous spectrum ____ 8. What type of radiation does our Sun mostly produce? a. infrared b. gamma rays c. white light d. ultraviolet e. radio ____ 9. Who was the first to prove that white light is the sum of all wavelengths? a. Galileo Galilei b. Annie Cannon c. Isaac Newton d. Albert Einstein ____ 10. In the nuclear fusion of hydrogen, when 4 hydrogen atoms combine, they form a. iron b. oxygen c. carbon d. helium
midterm_3_practice_exam.tst_.docx