Republic of the Philippines
Department of Education
Region VI- Western Visayas
Schools Division of Capiz
LUCERO NATIONAL HIGH SCHOOL
Lucero, Jamindan, Capiz
JHS School ID: 302411
SHS School ID: 343644
First Summative Test in PHYSICAL SCIENCE 12
S.Y. 2021-2022
DIRECTION: Write the letter of the correct answer on the space provided.
_____1. How is the energy of star produced?
a. By combustion
c. by nuclear fission
b. By decomposition
d. by nuclear fusion
_____2. Which is known as the biggest stars in the
universe.
a. main sequence star c. red super giant
b. red giant
d. white dwarf
_____3. Which is the first stage of a star’s life cycle?
a. black hole
c. protostar
b. nebula
d. white dwarf
_____4. Which is the second most abundant element in
the universe?
a. carbon
c. hydrogen
b. helium
d. oxygen
_____5. Which fusion of elements does Iron come from?
a. carbon fusion
c. magnesium fusion
b. neon fusion
d. silicon fusion
_____6. This is also known as Nucleosynthesis.
a. S Process
c. Nuclear Fission
b. R-Process
d. Proton-Proton Reaction
_____7. It was created by bombardment of molybdenum
by deuterons (heavy hydrogen, H12), by Emilio Segre
and Carlo Perrier in 1937.
a. Oxygen
c. Technetium
b. Helium
d. Uranium
_____8. It is also known as nuclear fusion and the
formation of new nuclei actions in the early stages of
development of the universe.
a. Nucleosynthesis
c. R-Process
b. S-Process
d. Singularity
_____9. He created a classification of elements based on
their atomic weight.
a. Rutherford c. Millikan
b. Dalton
d. Mendeleev
_____10. He synthesized element with atomic number
43 using a linear particle accelerator.
a. Ernest Rutherford
c. Dmitri Mendeleev
b. Ernest Lawrence
d. John Dalton
_____11. What is the molecular shape of CHBr3?
a. Linear
b. Trigonal planar
c. Trigonal bipyramidal
d. Tetrahedral
_____12. Which of the following statements is
INCORRECT?
a. Polar covalent bonds can be present in a
nonpolar molecule.
b. Polar covalent bond is present if the
electronegativity difference between atoms
is equal or less than 0.4.
c. Polarity of bond and molecular geometry are
the two factors that affect the polarity of
molecules.
d. Polar bond forms when electrons are
unequally shared by two atoms in a
compound.
_____13. Which of the following molecules is
tetrahedral?
a. H2O
c. CH4
b. SF6
d. BF3
_____14. What do you call the relative ability of a
bonded atom to attract shared electron pairs?
a. Electron affinity
b. Electronegativity
c. Ionization energy
d. Metallic property
_____15. Which of the following bonds is the
MOST polar?
a. H-Cl
b. C-Cl
c. H-H
d. N-F
Prepared by:
ENGR. ERNESTO B. LLAUDERES III
Special Science Teacher I