SUMMATIVE TEST IN PHYSICAL SCIENCE 2024

Which of the following is the most accepted theory about the formation of the universe that explains why it continues to expand?

• big bang theory

• divine creation theory

• steady state theory

• oscillating theory

Which of the following is not considered as light elements?

• helium

• hydrogen

• lithium

• iron

Which of the following is TRUE about nucleosynthesis?

• It is the division of atomic particle

• The combination of elements to form compound

• It is the creation of everything including all matter in universe

• It is the process of creating new atomic nuclei from pre-existing nuclei

Which process is responsible for the formation of light elements such as Hydrogen and Helium?

• big bang nucleosynthesis

• stellar nucleosynthesis

• supernova nucleosynthesis

• terrestrial nucleosynthesis

Which element is the lightest and at the same time the most abundant in outer space?

• hydrogen

• helium

• lithium

• iron

How do heavier elements formed?

• Though combustion

• Through nuclear fission

• Through nuclear fusion   

• Through nuclear synthesis

It is atoms of the same element but with different atomic

      mass (different number of neutrons).

• Element

• Isotope

• Compound

• Chemical

Which element can be formed when three atoms of helium are fused?

• carbon

• hydrogen

• oxygen

• silicon

Which element will be formed when Carbon atom is combined with Helium atom?

• magnesium

• neon

• oxygen

• silicon

Which phase of star life cycle is our sun?

• main sequence star

• planetary nebula

• red giant

• white dwarf