Astronomy Chapter Ten

11 Questions | By Moonshark13 | Updated: Mar 18, 2022 | Attempts: 178

Questions

Settings

Share on Facebook Share on Twitter Share on Whatsapp Share on Pinterest Share on Email Copy to Clipboard Embed on your website

Questions and Answers

1.

The phase of matter in the Sun is
- A.
  
  Gas.
- B.
  
  Plasma.
- C.
  
  Liquid.
- D.
  
  Solid.
- E.
  
  A mixture of all of the above
Correct Answer
B. Plasma.
2.

Which is closest to the temperature of the core of the Sun?
- A.
  
  10,000 K
- B.
  
  100,000 K
- C.
  
  1 million K
- D.
  
  10 million K
- E.
  
  100 million K
Correct Answer
D. 10 million K
3.

The core of the Sun is
- A.
  
  At the same temperature and density as the surface.
- B.
  
  At the same temperature but denser than the surface.
- C.
  
  Hotter and denser than the surface.
- D.
  
  Constantly rising to the surface through convection.
- E.
  
  Composed of iron.
Correct Answer
C. Hotter and denser than the surface.
4.

How does the Sun generate energy today?
- A.
  
  Nuclear fission
- B.
  
  Nuclear fusion
- C.
  
  Chemical reactions
- D.
  
  Gravitational contraction
- E.
  
  Gradually expanding in size
Correct Answer
B. Nuclear fusion
5.

How do human-built nuclear power plants on Earth generate energy?
- A.
  
  Chemical reactions
- B.
  
  Nuclear fusion
- C.
  
  Nuclear fission
- D.
  
  Converting kinetic energy into electricity
- E.
  
  Converting gravitational potential energy into electricity
Correct Answer
C. Nuclear fission
6.

At the center of the Sun, fusion converts hydrogen into
- A.
  
  Hydrogen compounds.
- B.
  
  Plasma.
- C.
  
  Radiation and elements like carbon and nitrogen.
- D.
  
  Radioactive elements like uranium and plutonium.
- E.
  
  Helium, energy, and neutrinos.
Correct Answer
E. Helium, energy, and neutrinos.
7.

How much mass does the Sun lose through nuclear fusion per second?
- A.
  
  4 tons
- B.
  
  4 million tons
- C.
  
  600 tons
- D.
  
  600 million tons
- E.
  
  Nothing: mass-energy is conserved.
Correct Answer
B. 4 million tons
8.

Suppose you put two protons near each other. Because of the electromagnetic force, the two protons will
- A.
  
  Collide.
- B.
  
  Remain stationary.
- C.
  
  Attract each other.
- D.
  
  Repel each other.
- E.
  
  Join together to form a nucleus.
Correct Answer
D. Repel each other.
9.

The light radiated from the Sun's surface reaches Earth in about 8 minutes, but the energy of that light was released by fusion in the solar core about
- A.
  
  Several years ago.
- B.
  
  Tens of years ago.
- C.
  
  About a hundred years ago.
- D.
  
  About a thousand years ago.
- E.
  
  A million years ago.
Correct Answer
E. A million years ago.
10.

What processes are involved in the sunspot cycle?
- A.
  
  Gravitational contraction of the Sun
- B.
  
  Wave motions in the solar interior
- C.
  
  Variations of the solar thermostat
- D.
  
  The winding of magnetic field lines due to variations in the Sun's rotation
Correct Answer
D. The winding of magnetic field lines due to variations in the Sun's rotation
11.

What observations characterize solar maximum?
- A.
  
  The Sun becomes much brighter.
- B.
  
  The Sun emits light of longer average wavelength.
- C.
  
  The Sun rotates faster at the equator.
- D.
  
  We see many sunspots on the surface of the Sun.
- E.
  
  All of the above
Correct Answer
D. We see many sunspots on the surface of the Sun.

Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
Mar 18, 2022

Quiz Edited by
ProProfs Editorial Team
Dec 11, 2010

Quiz Created by
Moonshark13

Astronomy Chapter Ten

The phase of matter in the Sun is

Which is closest to the temperature of the core of the Sun?

The core of the Sun is

How does the Sun generate energy today?

How do human-built nuclear power plants on Earth generate energy?

At the center of the Sun, fusion converts hydrogen into

How much mass does the Sun lose through nuclear fusion per second?

Suppose you put two protons near each other. Because of the electromagnetic force, the two protons will

The light radiated from the Sun's surface reaches Earth in about 8 minutes, but the energy of that light was released by fusion in the solar core about

What processes are involved in the sunspot cycle?

What observations characterize solar maximum?