WorksheetsLESSON 3 PHYSCI
Total questions: 10
Worksheet time: 5mins
Who proposed the Big Bang Theory?
Albert Einstein
Stephen Hawking
Georges Lemaitre
Isaac Newton
What is one of the evidences supporting the Big Bang Theory?
Presence of black holes
Continuous expansion of the universe
Existence of dark matter
Abundance of carbon
What is the first step in the formation of heavier elements in stars?
Expansion of the star
Creation of a helium shell
Ignition of hydrogen fusion
Formation of a plasma core
What happens when hydrogen atoms fuse into helium in the core of a star?
Expansion of the star
Formation of a carbon core
Formation of a helium core
Creation of a hydrogen shell
Why do we stop at Iron (Fe) in the process of element formation in stars?
Because iron is the most abundant element
Because more energy is needed for further fusion
Because iron is the most stable element
Because iron is the heaviest element
What is the purpose of a cyclotron in the synthesis of new elements?
To study the behavior of electrons
To accelerate protons to hit a target nucleus
To generate x-rays for spectroscopy
To create a plasma core in stars
How many transuranic elements are there in total?
20
15
26
30
Which element has the atomic number 99?
Organesson (Og)
Einsteinium (Es)
Livermorium (Lv)
Tennessine (Ts)
What did Henry Moseley's X-Ray Spectroscopy Experiment help in arranging?
Elements based on weight
Elements based on chemical properties
Elements based on atomic number
Elements based on melting point
How are heavier elements synthesized in laboratories on Earth?
By studying the behavior of neutrons
By cooling down plasma cores
By using a particle accelerator to add protons to existing atomic nuclei
By creating a fusion reaction with hydrogen atoms
