The Solar System & Lifecycles of Stars Quiz
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5 questions, one answer each
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1. Which of the following is NOT part of our Solar System?
- A. Dwarf planets
- B. Asteroids
- C. Comets
- D. Other stars' planets
2. What provides the centripetal force for a planet in a circular orbit around the Sun?
- A. Friction
- B. Magnetism
- C. Gravity
- D. Air resistance
3. A planet in a circular orbit moves at constant speed. Why is its velocity still changing?
- A. Its mass is changing
- B. Its direction is continually changing
- C. Its speed is actually increasing
- D. Velocity cannot change in an orbit
4. What is the correct life cycle order for a star with a mass similar to the Sun?
- A. Nebula, red giant, main sequence, white dwarf
- B. Nebula, main sequence, red giant, white dwarf
- C. Nebula, supernova, white dwarf, red giant
- D. Main sequence, nebula, white dwarf, red giant
5. A star much more massive than the Sun reaches the end of its life. What determines whether it becomes a neutron star or a black hole?
- A. The colour of the supernova
- B. The remaining mass of the collapsed core after the supernova
- C. The distance from Earth
- D. The temperature of the nebula it formed from