Summative Test No.
1 – Physical Science
Coverage: Module 1 - 4
A. Multiple Choice. Write the letter of the best answer.
1. Which of the following is the most accepted theory about the formation of the universe
that explains why it continues to expand?
a. big bang theory c. steady state theory
b. divine creation theory d. oscillating theory
2. Which of the following is not considered as light elements?
a. Helium c. lithium
b. Hydrogen d. Iron
3. Which of the following is TRUE about nucleosynthesis?
a. It is the division of atomic particle
b. The combination of elements to form compound
c. It is the creation of everything including all matter in universe
d. It is the process of creating new atomic nuclei from pre-existing nuclei
4. Which process is responsible for the formation of light elements such as
Hydrogen and Helium?
a. big bang nucleosynthesis c. supernova nucleosynthesis.
b. stellar nucleosynthesis d. terrestrial nucleosynthesis
5. Which element is the lightest and at the same time the most abundant in
outer space?
a. hydrogen c. lithium
b. helium d. iron
6. Elements having the same atomic number but different in atomic mass.
a. Isotopes c. Neutrons
b. Nuclides d. Protons
7. He proposed that all matter is composed of tiny indivisible particles called atomos.
a. Democritus c. John Dalton
b. Neils Bohr d. Thales
8. What is the last element formed at the end of the Alpha ladder process?
a. Carbon c. Helium
b. Hydrogen d. Iron
9. The man that proved the existence of neutron in 1932.
a. J.J. Thomson c. John Dalton
b. James Chadwick d. Neils Bohr
10.The negatively charged of an atom is ______.
a. Electron c. Proton
b. Neutron d. Isotope
11. Which process happens when there is a slow rate of capturing neutron while there is a
faster rate of radioactive decay?
a. R – process
b. S – process
c. Tri-alpha process
d. CNO cycle
12.Atoms with greatly differing electronegativity values are expected
to form
a. ionic bonds c. polar covalent bonds
b. nonpolar covalent bonds d. triple bonds
13.The most electronegative element is:
a. He b. F c. At d. Cs
14. Water is considered a polar molecule because _____.
a. it has partial positive and negative charges at each end
b. it expands when it freezes
c. it dissolves solutes
d. All statement is correct
15. What is the electronegativity of Hydrogen atom?
a. 2.1 b. 3.1 c. 1.0 d. 3.4
16. Temperature at which the pressure exerted by the surroundings upon a liquid is
equaled by the pressure exerted by the vapor of the liquid.
a. Boiling point b. melting point c. Solubility d. surface tension
17. Resistance of a fluid (liquid or gas) to a change in shape, or movement of
neighboring portions relative to one another.
a. Surface tension b. melting point c. viscosity d. boiling point
18. A property referring to the ability for a given substance, the solute, to dissolve in
a solvent. It is measured in terms of the maximum amount of solute dissolved in a
solvent at equilibrium.
a. Surface tension b. solubility c. viscosity d. boiling point
19. the forces of attraction or repulsion which act between neighboring particles
(atoms, molecules, or ions ).
a. Surface tension b. solubility c. viscosity d. Intermolecular Forces
20. The temperature at which solid and liquid phases are in equilibrium.
a. Surface tension b. melting point c. viscosity d. boiling point
B. Determine if the bond between elements are polar covalent or non-polar covalent using
electronegativity difference. Write P if the molecule is polar and NP if it is nonpolar.
1. _____ 1. CH4
2. _____ 2. HF
3. _____ 3. CF4
4. _____ 4. O2
5. _____ 5. HBr
C. Complete the table below.
Bond Polarity Molecular Geometry Polarity of Molecule
H2O
CCl4
BF3
SF6
SiF4
James 1:5
If any of you lacks wisdom, he should ask God, who gives generously to all without finding
fault, and it will be given to him. (NIV)
Answe Key
1. A
2. D
3. C
4. A
5. A
6. A
7. C
8. A
9. B
10. A
11. B
12. A
13. B
14. D
15. A
16. A
17. C
18. A
19. D
20. B
