Physics cycle test P2

What are the three main types of tectonic boundaries?

• Erosion, Sedimentation, Metamorphism

• Folding, Faulting, Uplift

• Subduction, Compression, Expansion

• Divergent, Convergent, Transform

Describe the movement that occurs at a convergent boundary.

• Tectonic plates remain stationary and do not move.

• Tectonic plates slide past each other without interaction.

• Tectonic plates move towards each other, leading to subduction or collision.

• Tectonic plates move apart, creating new crust.

What geological features are commonly formed at divergent boundaries?

• Deserts

• Mid-ocean ridges, rift valleys, and volcanic islands.

• Plateau formations

• Mountain ranges

Explain the process of subduction and its significance.

• Subduction is the process where one tectonic plate moves under another, leading to geological recycling, volcanic activity, and earthquakes.

• Subduction is the process of tectonic plates moving apart, creating new crust.

• Subduction leads to the formation of large ocean basins and reduces volcanic activity.

• Subduction occurs when two tectonic plates collide and form mountains.

What is the difference between oceanic and continental plates?

• Continental plates are found only on land, while oceanic plates are found only in water.

• Oceanic plates are less dense and more buoyant than continental plates.

• Oceanic plates are thinner and denser than continental plates, which are thicker and less dense.

• Oceanic plates are thicker and denser than continental plates.

How do transform boundaries affect the Earth's surface?

• Transform boundaries primarily cause earthquakes and create fault lines, affecting the Earth's surface by forming linear valleys and offset streams.

• Transform boundaries primarily cause landslides and tsunamis.

• Transform boundaries lead to the formation of new oceanic crust.

• Transform boundaries create volcanoes and mountains.

What is a nebula and how does it relate to star formation?

• A nebula is a solid object in space that cannot form stars.

• A nebula is a planet that orbits a star.

• A nebula is a cloud of gas and dust in space that is a key site for star formation.

• A nebula is a type of star that emits light.

Outline the stages of stellar evolution for a medium-sized star.

• Main Sequence, Red Giant, Supernova, Black Hole

• Protostar, Main Sequence, Red Dwarf, Brown Dwarf

• Nebula, Red Supergiant, Black Hole, Neutron Star

• Nebula, Protostar, Main Sequence, Red Giant, Planetary Nebula, White Dwarf

What role does nuclear fusion play in the life cycle of a star?

• Nuclear fusion has no impact on a star's brightness or temperature.

• Nuclear fusion cools stars and prevents their collapse.

• Nuclear fusion powers stars and drives their life cycle stages.

• Nuclear fusion is only relevant during a star's death phase.

Describe the difference between a protostar and a main-sequence star.

• A protostar is a fully formed star that has begun fusing helium.

• A main-sequence star is a stage where stars collapse into black holes.

• A protostar is an early stage of star formation before nuclear fusion begins, while a main-sequence star is a stable star that fuses hydrogen into helium.

• A protostar is a type of planet that orbits a star.