Sun and Stars

Front

What is nuclear fusion?

Back

Nuclear fusion is the process where two light atomic nuclei combine to form a heavier nucleus, releasing energy in the process.

Front

What conditions are necessary for nuclear fusion to occur?

Back

High density and high temperature are required for nuclear fusion to occur.

Front

What are sunspots?

Back

Sunspots are areas on the sun's surface that are cooler than the surrounding gas, appearing darker.

Front

What is the primary source of the sun's energy?

Back

The primary source of the sun's energy is nuclear fusion.

Front

What happens when hydrogen nuclei fuse into helium nuclei?

Back

When hydrogen nuclei fuse into helium nuclei, energy is released.

Front

What is the core of the sun?

Back

The core is the innermost layer of the sun where nuclear fusion occurs, producing energy.

Front

What is solar wind?

Back

Solar wind is a stream of charged particles released from the sun's atmosphere.

Front

What are solar flares?

Back

Solar flares are sudden eruptions of energy on the sun's surface that can affect space weather.

Front

What is the difference between nuclear fusion and nuclear fission?

Back

Nuclear fusion combines light nuclei to form a heavier nucleus, while nuclear fission splits a heavy nucleus into lighter nuclei.

Front

What role does gravity play in the sun's structure?

Back

Gravity pulls the sun's mass inward, balancing the outward pressure from nuclear fusion.