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Q2-LAS-SCIENCE - Review

Quiz by FLORA EBCAS

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50 questions
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  • Q1
    1. Which of the following statement is true about earthquake?
    D. Tectonic plates do not move if rocks are stretched, compressed or crushed.
    C. The earth’s crust is unbroken even if there are compressions and tensions.
    B. Earthquake is a matter of it and not a matter of when
    A. Faults form as the Earth’s crust deforms due to stress.
    30s
  • Q2
    2. Which is correctly matched?
    B. normal fault – the hanging wall moves downward
    C. reverse fault – walls move sideways not up or down
    A. strike-slip fault – the hanging wall moves upward.
    D. oblique-slip fault – walls move horizontally in opposite directions.
    30s
  • Q3
    3. Which of the following forces will happen when rocks are pulled away from each other?
    B. parallel
    D. tension
    A. compression
    C. shearing
    30s
  • Q4
    4. Which refers to the origin of the earthquake?
    D. focus
    C. fault plane
    A. epicenter
    B. fault
    30s
  • Q5
    5. Which statement best describes a fault plane?
    D. It is the flat surface along which there is slip during an earthquake.
    A. It is the location where the fault begins to slip.
    B. It is the area where layers of rocks break into two.
    C. It is the trace of the fault on the surface of the Earth.
    30s
  • Q6
    6. Which is correct about focus and epicenter
    C. Epicenter is in the surface of the earth that is directly below the focus.
    D. Epicenter is in the surface of the earth that is directly above the focus.
    B. Epicenter is the point where the focus of the earthquake originates.
    A. Epicenter is also called hypocenter or focus.
    30s
  • Q7
    7. How do magnitude and intensity differ?
    C. Magnitude is determined by observing the effects of the earthquake in people and places while intensity is calculated by the scientists based on earth’s released energy.
    D. Magnitude is a quantitative measure of the energy released during the earthquake while intensity is a qualitative measure of the strength of the earthquake at a certain location.
    B. Magnitude uses Roman numerals (I, II, III), whereas intensity uses Hindu-Arabic numerals (2, 3, 4).
    A. Magnitude is determined by using Rossi-Forel Scale while intensity is measured by seismographs.
    30s
  • Q8
    8. When an earthquake occurs, different places experience different intensities. When an earthquake happens, where should shaking be greater?
    B. away from the epicenter
    A. near the epicenter
    D. right of the epicenter
    C. left of the epicenter
    30s
  • Q9
    9. Which refers to the fault that generated earthquakes within 10,000 years and is capable of moving again?
    D. reverse fault
    C. normal fault
    B. inactive fault
    A. active fault
    30s
  • Q10
    10. How do you call the 1200 km fault zone in the country that moves across the archipelago?
    B. Philippine Fault Zone
    D. Valley Fault System
    C. Lubang Fault
    A. Central Marinduque Fault
    30s
  • Q11
    11. Which fault system runs in Metro Manila?
    D. Valley Fault System
    B. Digdig Fault
    A. Casiguran Fault
    C. Lubang Fault
    30s
  • Q12
    12. Scientists use different ways to find out if a fault is active. Which of following ways are helpful in studying faults? I. Checking the country’s historical records. II. Studying vibrations that come from faults III. Collecting rock samples from bodies of water. IV. Studying the strength of soil and flow of water.
    A. I and II
    B. I and III
    C. II and IV
    D. III and IV
    30s
  • Q13
    13. What is the relationship between the densities of the earth’s crust with the speed of seismic waves?
    B. The greater the density of the earth’s crust, the slower the seismic wave moves.
    C. The speed of the seismic wave does not change with respect to the changes in density of the crust.
    D. As the seismic wave travels to the liquid part of the crust, the density does not change but the speed of the seismic wave increases.
    A. The greater the density of the earth’s crust, the faster the seismic wave moves.
    30s
  • Q14
    14. Why does tsunami not always occur when there is earthquake?
    C. Because the magnitude of an earthquake needs to be 6.5 and above.
    B. Because land earthquakes are connected to underwater earthquakes
    A. Because the focus is always located underwater.
    D. Because the fault movement underwater maybe in horizontal direction or sideways?
    30s
  • Q15
    15. Which statement does not correctly describe tsunami?
    B. Tsunami has short wavelength which is usually 5 to 10 meters in length.
    D. Tsunami happens due to a sudden displacement of a large body of water.
    C. As tsunami moves into shallow water, the height of the wave increases.
    A. Tsunami is a series of waves travelling across the ocean.
    30s

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