Tectonic Plates and Philippine Islands

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Questions and Answers

Which of these is always a characteristic of a tectonic plate?

Is in constant motion.

Consists of the crust & a part of the upper mantle.

May contain the continental crust or the oceanic crust or both.

All of these are correct. (correct)

What is the first step in locating the epicenter of an earthquake?

Determine the distance of the epicenter from the station.

Use the triangulation method to locate the center.

Obtain data from 3 different seismic stations.

Determine the difference in the arrival of S & P waves recorded from each of the seismic stations. (correct)

What causes the mantle's convection currents according to scientific belief?

Volcanoes

Core (correct)

Crust

Sun

Why does the oceanic crust typically subduct beneath the continental crust during plate collisions?

Denser than continental crust. Signup and view all the answers

Which statement is NOT true about the Philippine Islands?

Originated geologically in an oceanic-oceanic convergence. Signup and view all the answers

If you visit a converging plate area in the Pacific, which feature should you NOT expect to see?

Rift valleys Signup and view all the answers

Where do most earthquakes occur in relation to tectonic plates?

Boundaries Signup and view all the answers

What type of boundary is formed between the Philippine Plate & the Eurasian Plate?

Convergent Signup and view all the answers

What best describes a transform fault boundary?

The two plates slide past one another. Signup and view all the answers

What geological feature is formed when continents on converging plates collide?

Mountains Signup and view all the answers

What geologic event is most likely to occur at a transform fault boundary?

Earthquake Signup and view all the answers

Which current theory explains the movement of tectonic plates?

Mantle convection Signup and view all the answers

Which feature is typically formed at an oceanic-oceanic convergent boundary?

Volcanic island arcs Signup and view all the answers

Which of the following is FALSE regarding lithospheric plates?

Have uniform thickness Signup and view all the answers

Which of the following is NOT regulated by the hormones of the female reproductive system?

Menstrual flow cessation Signup and view all the answers

What happens to a light ray traveling parallel to the axis of a concave lens?

Bend outward Signup and view all the answers

Which of the following pairs correctly represents the transformations of energy in devices?

Motor: Electric to Mechanical, Generator: Mechanical to Electric Signup and view all the answers

Which property primarily distinguishes infrared radiation from ultraviolet radiation?

Wavelength Signup and view all the answers

Which gland is NOT involved in regulating the creation of sperm cells?

Adrenal Gland Signup and view all the answers

Which EM wave is typically used for detecting bone fractures in medical imaging?

X-ray Signup and view all the answers

What type of damage does ultraviolet radiation cause to the skin?

Deteriorates collagen Signup and view all the answers

What is produced when a magnet is moved through a coil?

Electricity Signup and view all the answers

What is the shape of the magnetic field formed around a current-carrying conductor?

Concentric circles Signup and view all the answers

What principle allows electric generators to function?

An induced electromotive force exists in a changing magnetic field. Signup and view all the answers

A bird's wing and a human arm are examples of what type of structures?

Homologous structures Signup and view all the answers

Which base pair is absent in RNA?

Thymine Signup and view all the answers

Which type of lens is thinner at the center and thicker at the edges?

Concave lens Signup and view all the answers

Which electromagnetic wave is critical for photosynthesis in plants?

Visible light Signup and view all the answers

What process involves the generation of ATP in the presence of light?

Photosynthesis Signup and view all the answers

What is the primary function of mitochondria in eukaryotic cells?

Energy production Signup and view all the answers

Study Notes

Tectonic Plates

All tectonic plates consist of Earth's crust and a section of the upper mantle.
Tectonic plates are always in motion.
Tectonic plates can contain continental crust, oceanic crust, or both.
The Earth's mantle's convection currents are caused by heat from the Earth's core.
Oceanic crust subducts beneath continental crust due to its higher density.

Philippine Islands

Most parts of the Philippine Mobile Belt, except Palawan, Mindoro, and Zamboanga, were formed due to the convergence of the Philippine Plate and the Pacific Plate.
The Philippine Islands originated from oceanic-oceanic convergence.
Some Philippine Islands are products of subduction processes.

Plate Boundaries

Most earthquakes occur near the boundaries of tectonic plates.
The Philippine Plate and the Eurasian Plate share a convergent boundary.
Transform fault boundaries occur when two plates slide past each other.
Converging plates can cause continents to collide and form mountains.

Earth's Interior

The asthenosphere supports and moves the tectonic plates.
The lithospheric plates vary in thickness, being thickest in mountain regions.

Seafloor Spreading

The magnetization of the oceanic crust, depth of the ocean, and thickness of seafloor sediments were instrumental in formulating the hypothesis of seafloor spreading.

Continental Drift Evidence

Cynognathus fossils have been found in Antarctica.
Glossopteris fossils have been found in North America.
Lystrosaurus fossils have been found in Australia.
Mesosaurus fossils have been found in South America.

Electromagnetic Spectrum

Red light has the longest wavelength in the visible spectrum.
Infrared and ultraviolet rays are located at the ends of the visible spectrum.
Wavelength distinguishes infrared and ultraviolet radiation.
Geologists study rock samples and seismic waves to learn about Earth's internal structure.

Human Reproduction

Testosterone regulates the development of secondary sex characteristics in males.
The brain, pituitary gland, and testes regulate sperm cell production.
The female reproductive system regulates egg growth, release, and movement, as well as preparing the uterus for pregnancy.
Fertilization occurs in the oviduct.
The vagina serves as a birth canal, allows sperm entry, exits menstrual flow, and contains an opening to the uterus.

Nervous System

The nervous system's two divisions are the central and peripheral.

Electromagnetic Spectrum Applications

Infrared radiation is used in medical scans to detect abnormally high body temperature.
Microwave radiation is used in satellite communication.
X-rays are used to detect bone fractures.
Infrared radiation is sometimes referred to as heat rays.

UV Radiation

UV rays can damage DNA (causing skin cancer) and collagen (causing aging).
UV rays can destroy vitamin A.
UV rays ionize atoms in the body.

Electricity and Magnetism

Moving a magnet through a coil creates electricity.
A current-carrying conductor creates concentric circles in a magnetic field.
Electric generators operate based on the principle that a closed-loop conductor within a changing magnetic field induces an electromotive force.

Biology

A bird's wing and a human arm are homologous structures, suggesting common ancestry.
Thymine is not found in RNA, Uracil is.

Optics

A concave lens is thin at the center and thick at the edges.
Visible light is responsible for plant food production through photosynthesis.

Mirrors and Lenses

A concave mirror is used in automobiles and trucks to provide a wider view.
A concave mirror placed between an object and its focal point forms a virtual and erect image.
A concave lens produces smaller and upright images.
A plane mirror reflects light, producing a virtual and upright image that is the same size as the object.
The distance between you and your image in a plane mirror is twice the distance between you and the mirror.

Electric Generators and Motors

Electric motors convert electrical energy into mechanical energy; generators convert mechanical energy into electrical energy.

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Description

Test your understanding of tectonic plates, their movements, and how they shape regions like the Philippine Islands. Explore concepts such as convergence, subduction, and plate boundaries in this engaging quiz.