ESS Sem 1 Final Review

Front

How many atoms of Hydrogen must fuse together to form an atom of Helium?

Back

2

Front

What is the process of forcing 2 atoms together to make a larger atom called?

Back

Nuclear fusion

Front

What is the orbital period of Earth?

Back

365 days

Front

How does the abundance of hydrogen and helium support the Big Bang Theory?

Back

Hydrogen and helium abundance is high compared to heavier elements.

Front

Which is the largest object in our solar system?

Back

Sun

Front

What is nuclear fission?

Back

The process of splitting a large atomic nucleus into smaller nuclei, releasing energy.

Front

What is the main component of the Sun?

Back

Hydrogen, which makes up about 74% of its mass.

Front

What is the significance of the Big Bang Theory?

Back

It explains the origin of the universe and the distribution of galaxies.

Front

What are the two most abundant elements in the universe?

Back

Hydrogen and Helium.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, proportional to their masses.