SCIENCE 8- PRE-TEST

Quiz by Emmalyn Querijero

Grade 8
Science
Philippines Curriculum: Grades K-10 (MELC)

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40 questions
Show answers
• Q1

It refers to the rock’s zone of weakness where the breaking of the rocks starts.

focus

foot wall

hanging wall

fault

30s
• Q2

Which of the following describes the build-up and release of stress during an earthquake?

Elastic Rebound Theory

Modified Mercalli Scale

Principle of Superposition

Travel Time Difference

30s
• Q3

What major fault line runs through Metro Manila?

Eastern Philippine Fault

Western Philippine Fault

West Valley Fault

Central Philippine Fault

30s
• Q4

The fault motion of a strike-slip fault is caused by __________.

shearing forces

compressional forces

gravity force

tensional forces

30s
• Q5

You heard from the news that the earthquake has an energy of 7.6. Which of the following is the correct term to be used to describe the energy of 7.6?

Force

Intensity

Magnitude

Power

45s
• Q6

How do scientists find out if a fault is either active or inactive?

Scientists check the country’s historical records about destructive events such as typhoons.

Scientists gather information from fossils and other ancient rocks.

Scientists are studying the vibrations, past, and present that comes from faults.

Scientists use meteorological observation and astronomical data.

45s
• Q7

What type of faulting is illustrated in this diagram?

normal fault

strike -slip fault

thrust fault

reverse fault

30s
• Q8

As the waves travel deeper into the mantle of the Earth, which likely to happen?

S- waves penetrate the molten mantle

P-waves are refracted

P- waves create shadow zone

S-waves are refracted

30s
• Q9

It is an instrument used to measure the amount of energy released by an Earthquake.

Seismogram

Stenograph

Microscope

Seismograph

30s
• Q10

A type of fault which shows both dip-slip and strike-slip motion is called _______.

oblique-slip fault

strike-slip fault

reverse fault

normal fault

30s
• Q11

Which of the following statements does NOT explain the difference of earthquake’s magnitude and intensity?

Magnitude measures size or strengths of an earthquake while Intensity documents an earthquake’s damage.

Magnitude is expressed using Roman Numerals while intensity is expressed using Hindu-Arabic numerals.

Magnitude measures the energy released while intensity measures the severity of shaking.

Magnitude is written in Hindu-Arabic numerals while intensity is measured in Roman Numerals.

45s
• Q12

Which of the following is NOT the basis used by Earth scientists in classifying faults?

The occurrence of earthquakes along the faults.

The type of force that causes the movement.

The direction of slip along the fault.

The angle of the fault with respect to the surface.

30s
• Q13

Epicenter is the point on the earth’s surface that is vertically above the focus.

At what point is the epicenter of an earthquake located?

Point A

Point B

Point C

Point A to C

60s
• Q14

Which of the following does NOT describe the Rayleigh waves?

It produces elliptical motion

It has the longest duration

It is most frequently felt

It vibrates side to side

30s
• Q15

Which of the following explains the statements below?

I. Body waves are vibrations which may inflict great damage to properties.

II. Body waves are vibrations that travel through the interior of the Earth.

Both statements are true

Both statements are false

The first statement is false and the second is true

The first statement is true and the second is false

60s

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