Star Power Quiz

Ethan, Jackson, and Kai are studying astronomy and they are curious to know, what is the main source of energy for stars like our Sun?

• Chemical reaction

• Nuclear fusion

• Nuclear fission

• Solar radiation

What is the process by which nuclei of two or more atoms fuse together, giving off tremendous amounts of energy?

• Nuclear fission

• Nuclear fusion

• Chemical reaction

• Solar radiation

What is the role of particle accelerators in studying nuclear fusion in stars?

• To simulate conditions in the first minutes of the Universe or in stars

• To study chemical reactions

• To create new particles

• To study solar radiation

What is the name of the well-known accelerator in California that can propel particles a straight 2 mi (3.2 km)?

• Fermilab

• SLAC

• CERN

• LHC

What is the temperature of the surface of the Sun?

• 15,000 F

• 10,000 F

• 5,000 F

• 7,000 F

What allows the positively charged hydrogen nuclei to collide, instead of repelling each other during nuclear fusion?

• Strong nuclear force

• Weak nuclear force

• Gravitational force

• Electromagnetic force

What is produced by the collision of positively charged hydrogen nuclei during nuclear fusion?

• Carbon

• Oxygen

• Nitrogen

• Helium

What kind of fusion powers the Sun?

• Deuterium-deuterium fusion

• Carbon-nitrogen fusion

• Deuterium-tritium fusion

• Proton-proton fusion

What characteristics of stars make them good nuclear fusion reactors?

• High temperature and pressure

• Low temperature and pressure

• High temperature and low pressure

• Low temperature and high pressure

What did nuclear fusion contribute to the Universe billions of years ago?

• Formation of planets

• Formation of black holes

• Formation of galaxies

• Formation of heavy elements