FREE DOWNLOAD SECOND QUARTER EXAM in SCIENCE GRADE 8 WITH TOS School Year 2022-2023

FREE DOWNLOAD SECOND QUARTER EXAM in SCIENCE GRADE 8 WITH TOS  School Year 2022-2023

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What's inside the SCIENCE Grade 8 periodical exam?

SECOND PERIODICAL TEST IN SCIENCE 8

NAME: ____________________________ GR.& SEC._________  SCORE:________ 

DIRECTIONS: Read each item carefully and write the letter of the correct answer on the blank  provided before each item. Write the letter corresponding to your chosen answer in CAPITAL LETTER.

_______1. What is a crack or break in the lithosphere that can shift and cause an earthquake?

A. Epicenter B. Eruption C. Fault D. Focus

_______2. What do you call a fault where two blocks of crust pull apart and create space?

A. Normal fault C. Strike-slip fault

B. Reverse fault D. Transform fault

_______3. How will you describe the movement of the walls in a strike-slip fault?

A. moving sideways C. pushing the side together

B. pulling the side apart D. pushing and pulling the sides

_______4. How does a reverse fault form?

A. The blocks slide past each other.

B. The blocks pull apart from each other.

C. The hanging wall moves upward relative to the footwall.

D. The hanging wall moves downward relative to the footwall.

_______5. What do you call the amount of ground displacement in an earthquake?

A. Crack B. Dip C. Fold D. Slip

_______6. What refers to a vibration of the Earth due to the rapid release of energy?

A. Earthquake B. Fault C. Friction D. Stress

_______7. Earthquakes happen along a fault line. Which of the following is NOT true about fault?

A. It can be found on land. C. It can be found under the sea.

B. It is where fault cyclone starts. D. It is a break in the Earth’s crust.

_______8. In which type of fault can earthquake occur?

A. Normal B. Reverse C. Transform D. All of these

_______9. Which type of fault would be least likely to occur along the valley?

A. Normal B. Reverse C. Thrust D. Transform

_______10. The Alpine Fault cuts through New Zealand. At this location, two plates are sliding past each other slowly over time. What type of fault exists at Alpine Fault?

A. Divergent B. Normal C. Reverse D. Transform

_______11. What is the movement of a strike-slip fault?

A. Backwards B. Downward C. Sideways D. Upward

_______12. At what point along a fault does the first motion of an earthquake occur?

A. Epicenter B. Focus C. Intensity D. Magnitude

_______13. Where is the epicenter located?

A. directly above the focus

B. at the center of the earth

C. located in the seismic waves

D. located underground where the earthquake begins

_______14. Which instrument determines the amount of damage caused by earthquake?

A. spring scale C. Mercalli scale

B. Richter scale D. weighing scale

_______15. What is the highest intensity scale of an earthquake?

A. VIII B. IX C. X D. XI

_______16. Scientists use different ways to find out if a fault is active. Which one is NOT included?

A. creating a fault model C. tracing the country’s historical record

B. observing the surroundings D. studying the past and present vibrations

_______17. Which of the following locations is directly above the focus?

A. Core B. Epicenter

C. Fault D. Hypocenter

_______18. What is the magnitude of an earthquake that can cause serious damage in areas across several hundred miles?

A. 5.0 – 5.9 C. 7.0 – 7.9

B. 6.0 – 6.9 D. 8.0 – 8.9

_______19. Which of the following is NOT considered an effect when movement of an active fault happens?

A. ground motion C. surface faulting

B. typhoon formation D. land deformation

_______20. What is a seismograph?

A. a shock wave released by an earthquake

B. a scale used to describe energy released during an earthquake

C. a device used to measure ground motion during an earthquake

D. the image produced that shows ground vibrations during an earthquake

_______21. What would you expect to occur from an earthquake that measures 9.0 on the intensity scale?

A. Hanging objects swing slightly.

B. Stuff would fall off from the shelves.

C. Most buildings are totally damaged.

D. A slight shaking like a truck driving by.

_______22. Which instrument relies on human observation in measuring earthquake?

A. spring scale C. Mercalli scale

B. Richter scale D. weighing scale

_______23. Which does not describe the intensity of an earthquake?

A. minor B. moderate C. strong D. weak

_______24. Which is measured by a seismograph?

A. distance B. force C. intensity D. magnitude

_______25. What wave causes earthquake to occur?

A. Electromagnetic C. Seismic

B. Radio D. Sound

_______26. What does P in a P wave stand for?

A. Parallel B. Partial C. Perpendicular D. Primary

_______27. What kind of seismic wave arrives last at seismic station?

A. Love B. Primary C. Secondary D. Surface

_______28. Which type of wave vibrates parallel to the direction and travels in a push-pull motion?

A. Love B. Primary C. Secondary D. Surface

_______29. Which of the following statements best describes primary wave?

A. It travels through a vacuum.

B. It causes rock particles to vibrate.

C. It is the slowest, largest and causes the most destruction.

D. It travels the fastest and causes rock material to move back and forth.

_______30. Which type of seismic wave moves rock particles up and down, or side-to- side perpendicular to the direction the waves are traveling in?

A. Love B. Primary C. Secondary D. Surface

_______31. What type of seismic wave is S wave?

A. Electromagnetic C. Transverse

B. Longitudinal D. Ultrasonic

_______32. Which type of seismic waves can travel through crust, mantle, and core?

A. Love B. Primary C. Secondary D. Surface

_______33. In which of the following media can secondary waves travel?

A. gases only C. liquids only

B. solids only D. solids, liquids and gases

_______34. Which of the following statements is NOT true about the secondary wave?

A. S waves travel slower that P waves.

B. S waves can travel through solid rocks.

C. S waves move rock particles up and down.

D. S waves can travel both in solid rocks and in liquid medium.

_______35. What kind of waves can travel through a liquid?

A. Love B. Primary C. Secondary D. Surface

_______36. Which describes the motion of Love wave?

A. circular motion C. side-to-side

B. push and pull D. up and down

_______37. Which correctly describes Rayleigh waves?

A. It can penetrate the outer and inner core.

B. It rolls along the ground like a wave rolls along the ocean.

C. It is faster than a Primary Wave.

D. It is faster than an S wave but slower than P wave.

_______38. What is the velocity of a surface wave?

A. 4 km/s C. 3 to 4 km/s

B. 5 km/s D. 3 to 5 km/s

_______39. Why do S waves travel in solids only?

 A. Solids have enough shear strength.

 B. Solids have minerals and properties.

C. Solids have particles closely packed together.

D. Solids have rigid structure and resistant to the force applied.

_______40. Where do typhoons form?

A. Lakes B. Oceans C. Rivers D. Streams

_______41. Which weather disturbance develops in the northwest Pacific Ocean?

A. Blizzard B. Tornado C. Tropical Cyclone D. Tsunami

_______42. What is the other term for tropical cyclone?

A. Earthquake B. Tsunami C. Typhoon D. Wildfire

_______43. What Public Storm Warning Signal (PSWS) has a wind speed of 160 kph?

A. 1 B. 2 C. 3 D. 4

_______44. Where do typhoons that hit the Philippines mostly originate?

A. Indian Ocean C. South China Sea

B. Pacific Ocean D. West Philippine Sea

_______45. What does ITCZ mean?

A. Intertropical Convergence Zone

B. Intratropical Converging Zone

C. Intertropical Converging Zone

D. Intratropical Convergence Zone

_______46. Which tropical cyclone has a wind speed greater than 200 kph?

A. Super typhoon C. Tropical storm

B. Typhoon D. Tropical depression

_______47. How would you describe the condition within the typhoon’s eye?

A. Calm B. Intense C. Sunny D. Violent

_______48. Which agency takes charge of giving information about incoming typhoon?

1. Department of Environment and Natural Resources (DENR)

2. Philippine Institute of Volcanology and Seismology (PHIVOLCS)

3. National Disaster Risk Reduction and Management Council (NDRRMC)

4.  Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA)

_______49. What will you do if a typhoon will hit your place?

A. store bread and milk

B. hide in a room without windows

C. watch TV and share on Facebook

D. leave the area and proceed to the evacuation center

_______50. Which part of the typhoon has a calm condition?

A. eye C. rain band

B. eyewall D. wind system

_______51. Which statement below is INCORRECT about typhoon?

A. It generally moves in northwest direction.

B. The eye has lesser wind speed than the eyewall.

C. It requires ocean waters to form regardless of its location.

D. Air pressure within typhoon increases as distance from the eye of the storm increases.

_______52. What would be the consequence of an incorrect prediction of typhoon?

1.  There is no direct effect if the tracking is incorrect.

2.  The forecast for the typhoon’s intensity and direction would also be incorrect.

3. People would have no time to prepare for the danger that the typhoon would bring.

4. There would be a massive destruction of properties and lives of the people in the affected area.

_______53. How long should the movement of typhoon from ocean to land be tracked?

A. 4 days C. 6 days

B. 5 days D. 7 days

_______54. What does PAR mean?

A. Philippine Aeronautics of Radar

B. Philippine Area of Responsibility

C. Philippine Atmospheric Radiation

D. Philippine Astronomical Responsibility

_______55. Which does NOT refer to a tropical cyclone?

A. hurricane C. tsunami

B. storm D. typhoon

_______56. Where does typhoon usually start to develop?

A. mountain ranges C. high pressure area

B. low pressure area D. area with high temperature

_______57. What is a comet? It is a/an .

1.  rock from Mars

2. class of smaller inner solar system bodies that orbit around the sun

3.  icy ball of rock that displays a coma, a fuzzy temporary atmosphere, or a tail when it travels close to the sun

4.  natural object from small to huge that originates in space and survives the impact on the Earth’s surface

_______58. What composes silicate?

A. silicon, oxygen, and at least one metal

B. silicon, carbon, and at least one metal

C. silicon, methane and a rock

D. iron, nickel, and argon

_______59. Why do scientists study comets?

A. They are valuable minerals.

B. They could provide Earth with rocks.

C. They can help make the Earth a habitable planet.

D. They provide information how the Earth obtained liquid water.

_______60. Why would global temperature of the Earth drop when struck by a massive asteroid?

A. The resulting cloud would block out sunlight.

B. The low temperature of asteroid would chill the oceans.

C. The impact would move the Earth farther from the Sun.

D. The ice in the asteroid would increase the Earth’s reflective power.

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