Fourth Quarter Examination in Science 7

Which type of fault occurs when the hanging wall moves downward relative to the footwall?

• Thrust fault

• Normal fault

• Reverse fault

• Strike-slip fault

A reverse fault is characterized by .

• Horizontal movement where blocks slide past each other

• Vertical movement where the hanging wall moves up

• No movement along the fault plane

• Both blocks moving downward

A normal fault forms due to .

• Shear forces

• Tensional forces

• Rotational forces

• Compression forces

A strike-slip fault is commonly associated with .

• Convergent boundaries

• Transform boundaries

• Divergent boundaries

• Subduction zones

What determines the classification of a geological fault?

• The fault's angle and movement direction

• The speed at which tectonic plates move

• The amount of stress applied to the fault

• The depth at which the fault is located

What is the primary cause of earthquakes along faults?

• Continuous movement of tectonic plates

• Sudden release of accumulated stress

• Presence of water underground

• Volcanic eruptions only

How does a fault generate an earthquake?

• Sudden release of built-up pressure

• When lava flows between fault lines

• When tectonic plates remain stationary

• When rocks dissolve due to chemical weathering

Which fault type is most common in the Philippines?

• Normal fault

• Oblique fault

• Reverse fault

• Strike-slip fault

Why are strike-slip faults common in the Philippines?

• Because the country is located near a mid-ocean ridge

• Due to the presence of the Philippine Fault System

• Because of extensive volcanic activity

• Due to its flat terrain

The magnitude of an earthquake is primarily determined by .

• The depth of the fault

• The number of aftershocks

• The amount of energy released

• The distance from the epicenter