1. Jane can still pump air in the party balloon even though it is already inflated.
What explains this phenomenon?
a. balloons look better if it size is bigger
b. balloons are made up of plastic
c. the air inside the balloon is hot
d. air molecules can be compressed
2. What is most likely to happen when an aerosol can is heated?
a. the can will be deformed
c. the can will eventually explode
b. the can will stay the same
d. the can will tarnish
3. Each container with varying volume has 1.0 mole of oxygen gas at 30.0°C. In which
container will pressure be the lowest?
4. Which of the following
phenomena best illustrates Charles’ Law?
a. carbon dioxide being dissolved in water
b. expansion of the balloon as it is being submerged in hot water
c. breathing apparatus being used by a patient
d. leavening agent causing the fluffiness of cake products
5. Which of the following pair/s is/ are correctly matched?
a. I & II
b. III & IV
c. I, III, & IV
d. I, II, III, & IV
6. Records show that the incident of tire explosion is high during summer season.
Which of the following gives the best explanation for this observation?
a. there are more travellers during summer vacation
b. high temperature during summer season causes the air inside the tire to
expand
c. vehicles’ tires are not well maintained
d. there is too much air inside the tires
7. Determine what will happen to the temperature of a confined gas as the pressure
decreases.
a. the gas temperature stays the same
b. the gas temperature decreases
c. the gas temperature increases
d. there is no enough data
8. Gab wants to have a portable oxygen tank. A 5.00 liter oxygen gas exerts a pressure
of 1.00 atmosphere. How much pressure is needed for this gas to be compressed in a
2.00 liter cylinder, provided there is no temperature change?
a. 3.0 atm
b. 2.5 atm
c. 2.0 atm
d. 1.5 atm
9. The temperature of nitrogen gas contained in a not rigid vessel is reduced from
100°C to 5.0°C? Which of the following describes the resulting behavior of nitrogen gas
molecules?
I. The average kinetic energy suddenly increases, thus the pressure increases
II. The average kinetic energy suddenly decreases, thus the pressure decreases
III. The volume occupied by the gas molecule ssuddenly increases, thus the
container expand
IV. The volume occupied by the gas molecules suddenly decreases, thus the
container shrink
a. I & III
b. II & IV
c. I & IV
d. II & II
10. A balloon with a volume of 200 mL at 30°C is submerged in hot water to obtain a
temperature of 50°C. Find out what will happen to the volume of the balloon, provided
the pressure remains the same.
a. the volume of the balloon will become higher than 200 mL
b. the volume of the balloon will become lower than 200 mL
c. the volume of the balloon will stay the same
d. there is no enough data
11. What do you expect to happen to the volume of a gas if its pressure is doubled and
its temperature is reduced to half?
a. its volume is increased
b. its volume is doubled
c. its volume remains unchanged
d. its volume is decreased
12. How does the temperature affect the average kinetic energy of gas molecules?
a. As the temperature decreases the average kinetic energy of gas molecules
decreases
b. As the temperature decreases the average kinetic energy of gas molecules
increases
c. as the temperature decreases the average kinetic energy of gas molecules
remains the same
d. as the temperature decreases the average kinetic energy of gas molecules
fluctuates
13. What will happen to the gas pressure as the temperature increases, if the amount
and volume of the gas are kept constant?
a. the gas pressure remains the same
b. the gas pressure decreases
c. the gas pressure increases
d. there is no significant effect
(14-18) A balloon is filled to a volume of 2.20 L at a temperature of 25.0 °C. The
balloon is then heated to a temperature of 51.0 °C. Find the new volume of the
balloon. Show your complete solution.
19. What element is not found in the structure of the classes of carbohydrates?
a. Carbon (C)
b. Hydrogen (H)
c. Oxygen (O)
d. Sulfur (S)
20. What
a.
b.
c.
d.
21. What
a.
b.
c.
d.
type of bond is present in all of the classes of carbohydrates?
Metallic bond
Covalent bond
Ionic bond
Non polar covalent bond
are lipids?
These are biomolecules that has the job of storing energy for later use.
Liquids at room temperature and contain unsaturated fatty acids.
Molecules are composed of fused rings of atoms.
Solids at room temperature and contain saturated fatty acids.
22.These are solid at room temperature and contains saturated fatty acids.
a. oils
b. fats
c. cholesterol
d. fatty acids
23. What do you think is the best way to prevent heart diseases caused by high
cholesterol in the body?
a. Eat more vegetables and fruits.
b. Eat cakes and pastries
c. Drink more alcohol.
d. Sleep more than 8 hours at night.
24. What do you think will happen to people who has excessive cholesterol in their
body?
a. The organs will function properly
b. Their body will be healthy
c. They will suffer heart diseases.
d. They will be able to live longer.
25. How many amino acids are found in the human protein?
a. 30
b. 20
c. 40
d. 10
26. The following are the compositions of protein, EXCEPT
a. oxygen
b. carbon
c. nitrogen
d. lithium
27. It is the building block of protein.
a. amino acid
b. panthotenic acid
28. Why is protein important to our body?
a. It kills our cells.
c. acetic acid
d. valic acid
b. It weakens our immune system.
c. It grows and repairs our muscles, skin
d. and hair.
e. It weakens our lungs.
29. Which of the following biomolecules contain only the elements carbon, hydrogen
and oxygen?
a. carbohydrates and lipids
c. proteins and nucleic acids
b. lipids and proteins
d. nucleic acids and carbohydrates
30. Which of the following sugars are the components of lactose?
a. glucose & galactose
c. glucose & fructose
b. fructose and galactose
d. glucose and glucose
31. Which of the following sugars are the components of maltose?
a. glucose & galactose
c. glucose & fructose
b. fructose and galactose
d. glucose and glucose
32. The sugar in RNA is _____________, the sugar in DNA is ________.
a. deoxyribose, ribose
c. ribose, phosphate
b. ribose, deoxyribose
d. ribose, uracil
33. Which of the following is found in proteins?
a. Br
b. Fe
c. P
D. S
34. Which of the following groups are all classified as polysaccharide?
a. sucrose, glucose and fructose
c. glycogen, sucrose and maltose
b. maltose, lactose and fructose
d. glycogen, cellulose and starch
35. Amino acids are the building blocks of which group of biomolecules?
a. proteins
c. lipids
b. carbohydrates
d. nucleic acid
36. Which of the following is the major function of carbohydrates?
1. structural framework
2. storage
3. energy production
a. 1 only
b. 2only
c. 3only
d.1&3only
37. During a chemical reaction,_________________.
a. atoms are destroyed
c. elements are destroyed
b. atoms are rearranged
d. new elements are produced
38. A chemical reaction is a process in which
a. all reactants change state
b. products change into reactants
c. the law of conservation of mass applies
d. all of these
39. How is a chemical equation is balanced?
a. changing subscripts
b. erasing elements as necessary
c. adding coefficients
d. adding elements as necessary
40. What are the products in the equation below?
Zn + CuSO4 -----> ZnSO4 + Cu
a. Zn and Cu
c. ZnSO4 and Cu
b. Zn and CuSO4
d. Zn only
(41-50)Balance the following chemical equations.
41-45.
Fe + 𝑂2 ----->
𝐹𝑒2 𝑂3
𝑁𝐻3 + 𝑂2
𝑁𝑂2 + 𝐻2 O
46-50.
----->
1. Which BEST explains why the Earth is not disk-shaped?
a.
b.
c.
d.
Stars are viewed differently when traveling north and south.
The shadow cast by Earth during a lunar eclipse is circular.
The shadow cast in two different cities during a solstice differed in length.
The only shape that cast a circular shadow in whatever direction is a sphere.
2. Whichofthefollowingisanannualmotion?
A. Moonrise C. Sunset
B. Eastward rise of stars D. Vernal equinox
For nos. 3-4, choices are
A. Autumnal equinox C. Summer solstice B. Eastward rise of stars D. Zodiac cycle
3. What is a diurnal motion?
4. WhichdoesNOTinvolvetheSun’seclipticpath?
For nos. 5-7, choices are:
a.
b.
c.
d.
All planets revolve around the sun in an elliptical orbit.
Any point in the closed curved is equidistant to the two foci.
Planets move fastest in the elliptical orbit when nearest to the sun.
The length of a planet’s revolution in the Sun is proportional to its orbit’s
size.
5. Which describes the law of ellipse?
6. Which describes the law of harmony?
7. Which describes the law of equal areas?
For nos. 8-9, choices are:
A. Copernican C. Ptolemaic B. Keplerian D. Tychonic
8. Which presents a heliocentric model of the universe?
9. Which presents a geo-heliocentric model of the solar system?
10. Which of the following is TRUE about Galileo’s assertion about free - falling bodies?
a. BodieswillfallonthesurfaceoftheEarthataconstantacceleration. b. Bodies will fall on the
surface of the Earth at a constant speed.
c. BodieswillfallonthesurfaceoftheEarthataconstantvelocity.
d. Bodies will fall on the surface of the Earth at a constant projectile.
11. WhichofthefollowingisNOTconsideredpartofAristotelian’snaturalmotion?
a.
b.
c.
d.
Abookrestingontopofatable
Pushingacart
Anapplefallingfromatree
Smokenaturallyrises
12. Which of the following is NOT an assertion of Galileo?
a. A body that is in uniform motion will move a distance that is proportional to the
time it will take to travel.
b. Auniformlyacceleratingbodywilltravelataspeedproportionaltotime.
c. An object in motion will keep moving; and the external force is not necessary to
maintain the motion.
d. A body will fall on the surface of the Earth at a constant speed.
13. Which of the following is TRUE about Aristotle’s assertion about vertical motion?
a. The distance of a body is inversely proportional to the time it covers to travel a
certain height.
b. Themassofabodyisinverselyproportionaltothetimeitcoverstotravel a certain height.
c. Theaccelerationofabodyisinverselyproportionaltothetimeitcovers to travel a certain
height.
d. The velocity of a body is inversely proportional to the time it covers to travel a
certain height.
14. WhichofthefollowingisTRUEaboutinertiabasedonGalileo’sconception?
a.
b.
c.
d.
Inertiaisresponsibleforbringingabodytomotion.
Inertiaisresponsibleforthecontinuousaccelerationofabody.
Theamountofinertiaofabodyisdirectlyproportionaltoitsmass.
Theamountofinertiaofabodyisinverselyproportionaltoitsmass.
15. Rising of smoke is an example of what type of motion according to Aristotle?
a. natural b. normal c. reaction d. violent
16. Which of the following is needed to put a body to rest?
a. inertia b. force c. gravity d. mass
17. The resistance of a medium in response to movement of a body is known as;
a. antiperistasis b. force c. inertia d. gravity
18. What will happen if an external force is acted upon a body at rest?
a. it will move c. nothing will happen
b. it will not move d. it will remain in motion
19. What angle is formed by an incoming ray with the normal?
A. Angle of incidence
B. Angle of reflection C. Angle of refraction D. Angle of equivalence
20. What type of reflection is produced by rough surfaces? A. Diffuse reflection
B. Dispersion
C. Specular reflection
D. Total internal reflection
21. Two flat mirrors are perpendicular to each other as shown in the figure. An incoming
beam of light makes an angle of 15 ̊ with the first mirror.
What angle will the outgoing beam make with the second
mirror?
a. 15 ̊
b. 30 ̊
c. 75 ̊
d. 90 ̊
22.. The angle between a horizontal ruler and a vertical plane mirror is 30◦. What is the
angle between the ruler and its image?
A. 15 ̊
B. 30 ̊
C. 60 ̊
D. 90 ̊
For nos. 23-28, the choices are;
a.
b.
c.
d.
e.
f.
Double-slit experiment
Interference
Dispersion
Scattering
Diffraction
Constructive Interference
23. The wave behavior of electrons is supported using the ____________ experiment.
24. There are several wave properties of light namely: dispersion, scattering,
__________ and diffraction.
25. _____________ is the splitting of white light into rainbow colors upon passing
through a glass prism.
26. ______________ is the deflection of light by the dust particles and gas molecules.
27. _________________ is the bending of light around an obstacle.
28. Which is true according to Particle Model of light?
i. Reflection is the bouncing of light waves on reflecting surface
ii. Speed of light decreases in water
iii. Reflection is the bouncing of light corpuscles in the surface
iv. Speed of light decreases in heavier medium
(29-36) Briefly answer the following questions. 4points each.
A. . How do we see colors?
B. Why is red light used in photographic dark rooms?