Tectonic Plates and Earthquakes Quiz
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Questions and Answers

What is the primary driving force behind the movement of tectonic plates?

  • Earth's magnetic field
  • Gravitational forces
  • Mantle convection currents (correct)
  • Surface erosion

    • What occurs at divergent plate boundaries?

  • Plates collide, creating mountains
  • Plates move apart, leading to new crust formation (correct)
  • Plates subduct, resulting in deep ocean trenches
  • Plates slide past each other, causing earthquakes

    • Which force is responsible for the sinking of denser oceanic plates at subduction zones?

  • Slab pull (correct)
  • Ridge push
  • Mantle convection
  • Thermal expansion

    • What is typically the focus of an earthquake?

    <p>The place inside Earth's crust where the earthquake originates</p> Signup and view all the answers

    Which of the following best describes transform plate boundaries?

    <p>Plates slide past one another, leading to earthquakes</p> Signup and view all the answers

    What happens to limewater when carbon dioxide is bubbled through it?

    <p>It becomes milky or cloudy white.</p> Signup and view all the answers

    What is the primary mechanism through which new crust is formed according to Hess's theory of seafloor spreading?

    <p>Volcanic eruptions at mid-ocean ridges.</p> Signup and view all the answers

    Which of the following provides evidence for the Theory of Plate Tectonics?

    <p>Mountain building primarily at plate boundaries.</p> Signup and view all the answers

    Which statement accurately describes Alfred Wegener's theory of continental drift?

    <p>Continents were once part of a single supercontinent called Pangaea.</p> Signup and view all the answers

    Which of these is NOT considered evidence for Hess's theory of seafloor spreading?

    <p>Rocks being identical in age on different continents.</p> Signup and view all the answers

    Which element's rearrangement is crucial during chemical reactions in living organisms?

    <p>Carbon.</p> Signup and view all the answers

    How do the plates of the Earth move according to the theory of plate tectonics?

    <p>They float on the semi-fluid asthenosphere driven by convection currents.</p> Signup and view all the answers

    Which phenomenon primarily occurs at the boundaries of tectonic plates?

    <p>Earthquakes and volcanic activity.</p> Signup and view all the answers

    What is the primary characteristic of the epicentre of an earthquake?

    <p>It is directly above the earthquake's origin.</p> Signup and view all the answers

    Which type of wave is characterized as a compression or longitudinal wave?

    <p>P wave</p> Signup and view all the answers

    What role do earthquakes play in the formation of tsunamis?

    <p>They trigger vertical displacement of the seafloor.</p> Signup and view all the answers

    What does the Richter scale measure?

    <p>Magnitude of earthquakes.</p> Signup and view all the answers

    Which element is commonly used as a conductor in electric circuits?

    <p>Copper</p> Signup and view all the answers

    What does Ohm's Law state?

    <p>V = I × R</p> Signup and view all the answers

    What is the unit of measurement for electrical current?

    <p>Ampere</p> Signup and view all the answers

    Which best describes what an insulator does?

    <p>Blocks the flow of electric current.</p> Signup and view all the answers

    What instrument is used to measure voltage in a circuit?

    <p>Voltmeter</p> Signup and view all the answers

    What does a circuit diagram represent?

    <p>The arrangement of various circuit components.</p> Signup and view all the answers

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