Nuclear fusion is best described as:
A reaction that makes a new atom out of other atoms.
In fusion, light atomic nuclei combine to form a heavier nucleus, releasing energy in the process.
What is nuclear fusion?(1 point)
Responses
A reaction that turns an atom into energy.
A reaction that turns an atom into energy.
A reaction that makes new atoms out of one larger atom.
A reaction that makes new atoms out of one larger atom.
A reaction that makes a new atom out of energy.
A reaction that makes a new atom out of energy.
A reaction that makes a new atom out of other atoms.
9 answers
What is a constellation?(1 point)
Responses
A dust cloud with a recognizible shape.
A dust cloud with a recognizible shape.
A group of stars in a new star-forming region of space.
A group of stars in a new star-forming region of space.
A group of stars roughly the same size and age.
A group of stars roughly the same size and age.
A group of stars in a recognizable pattern.
Responses
A dust cloud with a recognizible shape.
A dust cloud with a recognizible shape.
A group of stars in a new star-forming region of space.
A group of stars in a new star-forming region of space.
A group of stars roughly the same size and age.
A group of stars roughly the same size and age.
A group of stars in a recognizable pattern.
A constellation is best described as:
A group of stars in a recognizable pattern.
Constellations are patterns that have been identified and named by different cultures throughout history.
What is the best way to describe the brightness of a star?(1 point)
Responses
By using its size.
By using its size.
By using its age, since all stars follow similar patterns over their lifespans.
By using its age, since all stars follow similar patterns over their lifespans.
By using its distance from earth, since stars closer appear brighter.
By using its distance from earth, since stars closer appear brighter.
By using its absolute magnitude.
Responses
By using its size.
By using its size.
By using its age, since all stars follow similar patterns over their lifespans.
By using its age, since all stars follow similar patterns over their lifespans.
By using its distance from earth, since stars closer appear brighter.
By using its distance from earth, since stars closer appear brighter.
By using its absolute magnitude.
The best way to describe the brightness of a star is:
By using its absolute magnitude.
Absolute magnitude measures a star's intrinsic brightness, regardless of its distance from Earth, allowing for a comparison of true brightness among different stars.
Which of the following are important uses of spectroscopy? Select two correct answers.(2 points)
Responses
Spectroscopy can tell us a star's type of solar weather.
Spectroscopy can tell us a star's type of solar weather.
Spectroscopy can tell us a star's temperature.
Spectroscopy can tell us a star's temperature.
Spectroscopy can tell us a star's composition.
Spectroscopy can tell us a star's composition.
Spectroscopy can tell us a star's size.
Responses
Spectroscopy can tell us a star's type of solar weather.
Spectroscopy can tell us a star's type of solar weather.
Spectroscopy can tell us a star's temperature.
Spectroscopy can tell us a star's temperature.
Spectroscopy can tell us a star's composition.
Spectroscopy can tell us a star's composition.
Spectroscopy can tell us a star's size.
The two correct answers regarding the important uses of spectroscopy are:
- Spectroscopy can tell us a star's temperature.
- Spectroscopy can tell us a star's composition.
Spectroscopy is a valuable tool in astrophysics for determining these properties of stars.
What is the best definition of electromagnetic radiation?(1 point)
Responses
All of the visible light spectrum.
All of the visible light spectrum.
The resulting disturbance from solar winds interacting with earth's magnetic field.
The resulting disturbance from solar winds interacting with earth's magnetic field.
The movement of charged particles through space.
The movement of charged particles through space.
A type of energy that can travel through space.
Responses
All of the visible light spectrum.
All of the visible light spectrum.
The resulting disturbance from solar winds interacting with earth's magnetic field.
The resulting disturbance from solar winds interacting with earth's magnetic field.
The movement of charged particles through space.
The movement of charged particles through space.
A type of energy that can travel through space.
The best definition of electromagnetic radiation is:
A type of energy that can travel through space.
Electromagnetic radiation encompasses a wide range of wavelengths, including visible light, radio waves, X-rays, and more.
1 answer