Cosmology and Astronomy Worksheet
Explore the wonders of cosmology and astronomy with this Grade 11 science worksheet, covering topics from the Big Bang to stellar evolution and galactic structures.
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Cosmology and Astronomy
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Read each question carefully and answer to the best of your knowledge. This worksheet will test your understanding of key concepts in cosmology and astronomy.
1. Which of the following is the most widely accepted theory for the origin of the universe?
Steady State Theory
Big Bang Theory
Oscillating Universe Theory
Inflationary Theory
2. What is the primary composition of a star?
Rock and Iron
Helium and Oxygen
Hydrogen and Helium
Carbon and Nitrogen
3. A galaxy is a massive, gravitationally bound system consisting of stars, stellar remnants, an interstellar medium of gas and dust, and .
4. The apparent shift in wavelength of light or sound waves coming from a source moving towards or away from an observer is known as the .
5. Our solar system is located in the Orion Arm of the Milky Way galaxy.
True
False
6. A black hole is a region of spacetime where gravity is so strong that nothing, not even light, can escape.
True
False
7. Describe the main stages in the life cycle of a star similar to our Sun.
8. Explain the difference between a spiral galaxy and an elliptical galaxy.
Use the words below to complete the sentences.
9. Stars are born in a cloud of gas and dust called a .
10. After exhausting its hydrogen fuel, a star like our Sun will expand into a .