Republic of the Philippines

Department of Education
Region I
Schools Division of Ilocos Sur
SOLOTSOLOT NATIONAL HIGH SCHOOL
300081

PHYSICAL SCIENCE
3rd Quarter, 2nd Semester

SUMMATIVE TEST # 4
Week 7-8

Name: _____________________________ Section: ___________________

MULTIPLE CHOICE. Read the following items carefully. Encircle the letter of your choice. STRICTLY NO
ERASURES.

1. Which of the following is being described by this phrase, “It can be converted in form, but not created nor
destroyed?”
a. atom c. force
b. energy d. matter

2. Energy that comes from sources that will run out or will not be replenished in our lifetimes—or even in many,
many lifetimes.
a. kinetic c. potential
b. non-renewable d. renewable

3. It refers to the organic matter from plants and animals (microorganisms).

4. This form of energy includes hydrocarbons such as coal, oil, and natural gas that comes from organic remains
of prehistoric organisms.
a. batteries c. natural gas
b. fossil fuels d. solar power

5. This source of energy is also known as “The People’s Power” referring to the easy deployment of solar panels
and the introduction of “community solar gardens” where energy is shared among owners.
a. biofuel c. hydroelectric
b. geothermal d. solar energy

6. This renewable energy utilizes moving water to turn turbines.

7. This source of energy is less of an environmental hazard compared to fossil fuels.

8. The energy that comes from fossil fuels came from the sun through this process when the prehistoric plants
were still alive.
a. cytokinesis c. mitosis
b. meiosis d. photosynthesis

9. Which of the following converts the kinetic energy of falling water into mechanical energy?
a. generator c. turbine
b. steam d. wind

10. Below are the operational geothermal power plants in the Philippines EXCEPT
a. Balugbug c. Malikban
b. Malibara d. Tiwi

11. Wind turbines are installed in strategic locations to harness what type of energy from wind?
a. chemical c. mechanical
 b. kinetic d. potential

12. Which of the following operational solar power plants is found in Batangas?
a. Cavite Economic Zone Solar Power Project
b. Central Mall Biňan Solar Power Plant
c. CW Home Depot Solar Power Project
d. Lian Sola Power Project

13. Which of the following is used to create methane and alcohol which are fuels useful in energy production and
in powering automobiles?
a. biomass c. coal
b. carbon d. oil
14. Which is an advantage of solar energy?
a. abundant c. expensive
b. amount of space d. rare metals

15. Which country has many potential sites where solar energy may be harnessed because of its location in the
globe?
a. Australia c. Saudi Arabia
b. Philippines d. United Kingdom

16. This is the type of cleaning products which many of the ingredients can be manufactured from plants.
a. astringent c. detergent products
b. bleaches d. dishwashing liquid

17. Most of the cleaning materials have active ingredients but different materials, what bleaching agent contains
active ingredient that can remove stains?
a. chlorine c. potassium
b. magnesium d. sulfur

18. This cleaning product provides the chemical energy to help clean and remove food soil from different types of
cooking and serving items.
a. astringent c. detergent products
b. bleaches d. dishwashing liquid

19. A cleaning agent that helps to disinfect and sanitize the materials and furniture in our home.
a. astringent c. detergent products
b. bleaches d. dishwashing liquid

20. To keep us healthy, the main function of this item is to prevent the spread of infectious diseases and control
allergens.
a. cleaning product c. electrical appliances
b. cooking utensils d. vehicles

21. What kind of household cleaning product that is used for cleaning dishes, plastics, and many other surfaces?
a. astringent c. detergent products
b. bleaches d. dishwashing liquid

22. Sodium hydroxide and ___________ are the most used alkali in soap and detergents.
a. calcium hydroxide c. magnesium hydroxide
b. carbon hydroxide d. potassium hydroxide

23. A kind of cleaning material that that is used for hand washing of glasses, plate, cutlery, and cooking utensils in
a sink or bowl.
a. astringent c. bleach
b. dishwashing liquid d. detergent products

24. Mixing chlorine bleach with ammonia or vinegar can release what kind of poisonous gas?
a. carbon c. potassium
b. chlorine d. sodium

25. This is a reducing bleach that works by changing the double bonds of a chromosphere into single bonds.
a. increasing bleach c. oxidizing bleach
b. non-oxidizing bleach d. reducing bleach

26. Cleaning your home is very important. It includes scrubbing, removing of dust, grease, and _________.
 a. clothes c. food waste
b. furniture d. shoes

27. In using cleaning products, one must remember some precautionary measures. Choose the best answer.
a. Read the instructions carefully before using the product.
b. Wear appropriate protective equipment when using the product.
c. A and B only
d. B only

28. Active ingredient in a cleaning product is the strong mineral acid and chalant. Which of the following is not a
mineral acid?
a. hydrochloric acid c. sulphuric acid
b. nitric acid d. carbonic acid

29. To attain a better and healthy living, one must practice proper hygiene and one of it is the handwashing. What
will you use to perform a good handwashing?
a. detergent c. bacterial soap
b. dishwashing liquid d. wax

30. In order to prevent any harm in using the cleaning products at home, one must:
a. Buy one product only.
b. Read carefully the product information.
c. Patronize the most popular name of a product.
d. Check the cheapest product available in the market.

31. Aside from the active ingredient, there are also other ingredients included in cleaning agents. This ingredient
helps in keeping the minerals out of the way of the surfactants.
a. builders c. pH adjusters
b. fragrance d. solvents

32. Depending on the chosen ingredient used in a product, what is the ingredient that helps to be more effective
on certain microbes?
a. antibacterial c. foam enhancer
b. enzymes d. preservatives

33. Adding of this ingredient in a certain liquid cleaning agent will decrease the viscosity of the liquid. What is this
ingredient?
a. dye c. solvents
b. enzymes d. thickener

34. Many people feel bubbles show that a product is working. What is the ingredient that creates suds in a
cleaning agent?
a. dye c. pH adjuster
b. foam enhancer d. preservatives

35. What is the group of ingredients that came in a natural or synthetic compound which gives pleasant smell to
the product?
a. antibacterial c. fragrance
b. foam enhancer d. thickener

36. What ingredient has the power to break down stains like in digestive system which helps break down the food
we eat?
a. enzymes c. solvents
b. fragrance d. thickener

37. This ingredient balanced the acidity or base of a certain product. What is this ingredient?
a. dye c. pH adjuster
b. fragrance d. solvents

38. What substance when added to a cleaning product makes it stable and safe for a longer period?
a. enzymes c. pH adjuster
b. foam enhancer d. preservative

39. What kind of ingredient is used in cleaning products that help in creating a unique experience?
a. dye c. fragrance
b. enzymes d. preservative
 40. What is the pH of a certain product to be considered as basic?
a. pH greater than 7 c. average pH is 7
b. pH less than 7 d. none of the above

41. What substance provides most of the cleaning power in cleaning products?
a. antibacterial c. solvents
b. enzymes d. surfactants

42. What are these ingredients included in a hand hygiene product which provide reduction in germs?
a. antibacterial c. fragrance
b. enzymes d. solvents

43. This substance can be extracted in natural compounds. Which of the following is a natural compound?
a. flowers c. nuts
b. fruits d. all of the above

44. What substance helps the surfactant more powerful through the reaction of certain stuff which is found in tap
water?
a. antibacterial c. enzymes
b. builders d. fragrance

45. Which of the following ingredients is considered as the active substance in a cleaning product?
a. enzymes c. surfactants
b. solvents d. thickener

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