Science

Question 1

It is a Philippine national institution dedicated to provide
information on the activities of volcanoes, earthquakes, and tsunamis, as well as other specialized information and services primarily for the protection of life and property and in support of economic,
productivity, and sustainable development

Answer 1

PHIVOLCS

Question 2

refers to the movements and interactions of the
Earth’s lithospheric plates, which can result in geological phenomena
such as earthquakes, volcanic eruptions, and the formation of
mountain ranges.

Answer 2

Tectonic activity

Question 3

is the point on the Earth’s surface directly above the
source of an earthquake, the spot where the shaking first begins.

Answer 3

Epicenter

Question 4

are a type of surface wave that cause the ground to shake
from side-to-side, perpendicular to the direction of the wave’s travel.

Answer 4

Love waves

Question 5

describes the overall change in an object’s position
relative to a reference point.

Answer 5

Displacement

Question 6

a scientific instrument that detects and records
vibrations in the Earth’s surface caused by seismic waves, such as those
generated by earthquakes.

Answer 6

Seismograph

Question 7

a type of tectonic plate boundary where two plates
slide past each other horizontally.

Answer 7

Transform fault

Question 8

crack in Earth’s crust where there’s a high likelihood
of future movement.

Answer 8

Active fault

Question 9

seismic waves that travel through the Earth’s interior,
rather than along its surface

Answer 9

Body waves

Question 10

It is a
government agency in the Philippines responsible for monitoring and
studying volcanoes, earthquakes, and other geologic hazards.

Answer 10

Philippine Institute of Volcanology and Seismology

Question 11

are regions in Earth’s crust where rocks have broken and
shifted relative to each other.

Answer 11

Fault zone

Question 12

is a fracture or zone of fractures within Earth’s crust where
movement has occurred.

Answer 12

Fault

Question 13

refers to the intensity or strength of a wave. In simpler
terms, it’s the distance from the middle (resting) position to the peak
of a wave, reflecting how much a wave vibrates up and down or side to
side

Answer 13

Amplitude

Question 14

refers to the hypothesis that the Earth’s volume
is increasing, causing the continents to move apart.

Answer 14

Expansion

Question 15

is the point within the Earth where an earthquake or
explosion originates.

Answer 15

Hypocenter

Question 16

in geology, are seismic waves that travel along the
outer layer of the Earth, causing the most destruction during
earthquakes.

Answer 16

Surface waves

Question 17

is an ancient device used to detect and indicate the
occurrence of earthquakes

Answer 17

Seismoscope

Question 18

fault is a big crack in the Earth’s surface where two chunks
of land slide past each other sideways.

Answer 18

Strike slip

Question 19

are energy waves that propagate through the Earth’s
interior and along its surface, causing ground movement during
earthquakes and other geological activities.

Answer 19

Seismic wave

Question 20

simply the total length traveled by an object, regardless of
direction.

Answer 20

Distance

Question 21

are a type of earthquake wave that travel along the
Earth’s surface, causing ground particles to roll in an elliptical motion,
like ocean waves.

Answer 21

Rayleigh waves

Question 22

is a graphical representation of ground movement
during an earthquake, showing the intensity and duration of seismic
waves at a specific location.

Answer 22

Seismogram

Question 23

is the solid, outer part of Earth.

Answer 23

Lithosphere

Question 24

are giant, rigid slabs of rock that form Earth’s
outermost solid layer.

Answer 24

Tectonic plates

Question 25

a type of fault zone where the rock above the fault is
thrust upwards compared to the rock below.

Answer 25

Reverse fault

Question 26

are the fastest traveling seismic waves and can travel
through all types of matter.

Answer 26

Primary waves

Question 27

a weak to violent shaking of the ground produced by
the sudden movement of rock materials below the earth’s surface

Answer 27

Earthquake

Question 28

is the study of Earth, its rocks, minerals, and landforms.

Answer 28

Geology

Question 29

refers to the structure and formation of the Earth’s crust
and the forces that move and shape it.

Answer 29

Tectonic

Question 30

geology describes the response of a rock to deformation
usually by compressive stress and forms particular textures.

Answer 30

Shearing

Question 31

refers to the force applied to a rock per unit area, leading to
deformation or strain within the rock

Answer 31

Stress

Question 32

geology is a long, narrow, and steep-sided depression on
the ocean floor, typically formed when one tectonic plate slides
beneath another.

Answer 32

Trench

Question 33

a crack in Earth’s crust that scientists believe isn’t
likely to cause earthquakes anytime soon, even though it may have
moved in the distant past.

Answer 33

Inactive fault

Question 34

refers to a break or crack in a rock formation caused by
stress or deformation, often resulting from tectonic forces or natural
processes like weathering and erosion.

Answer 34

Fracture

Question 35

It is a type of fault zone where the rock above the fault
slides down relative to the rock below.

Answer 35

Normal fault

Question 36

geology is defined as the relative movement of geological
features present on either side of a fault plane.

Answer 36

Slip

Question 37

are seismic waves that travel through the Earth by
causing particles to move perpendicular to the direction of wave propagation

Answer 37

Secondary waves

Question 38

It refers to the stress directed towards the center of a
rock mass, causing it to decrease in volume.

Answer 38

Compression