Podcast
Questions and Answers
What process does a star use to generate heat and light?
What process does a star use to generate heat and light?
- Nuclear fusion (correct)
- Photosynthesis
- Evaporation
- Chemical reaction
How do scientists determine the elements that make up a star?
How do scientists determine the elements that make up a star?
- By studying the color of the stars
- By observing their size
- By measuring their distance from Earth
- By analyzing the emissions spectra of the light they produce (correct)
Why is the sun's location near the center of the solar system important?
Why is the sun's location near the center of the solar system important?
- It keeps all the planets in their individual orbits (correct)
- It determines the color of the sky
- It affects the gravitational pull of other stars
- It controls the temperature of other stars
What is the main reason why Earth is warm enough for life to survive?
What is the main reason why Earth is warm enough for life to survive?
What determines the amount of solar radiation planets receive from the sun?
What determines the amount of solar radiation planets receive from the sun?
What is the main characteristic of red dwarf stars compared to main-sequence stars?
What is the main characteristic of red dwarf stars compared to main-sequence stars?
Which type of star is believed to have a life span of 10 trillion years?
Which type of star is believed to have a life span of 10 trillion years?
What happens when a red supergiant star dies?
What happens when a red supergiant star dies?
Which category of stars has a life span of several hundred thousand years?
Which category of stars has a life span of several hundred thousand years?
What is a defining characteristic of neutron stars?
What is a defining characteristic of neutron stars?
What is the initial stage in the life cycle of a star?
What is the initial stage in the life cycle of a star?
What are the products of fusing two hydrogen atoms together?
What are the products of fusing two hydrogen atoms together?
What can effectively block gamma rays from penetrating?
What can effectively block gamma rays from penetrating?
Why does a star appear brighter when it is hotter?
Why does a star appear brighter when it is hotter?
What factor can affect how bright a star appears from Earth?
What factor can affect how bright a star appears from Earth?
