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Earth and Physical Science Flashcards

6 cards from real AST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Earth and Physical Science flashcards as text

  1. Which layer of Earth is composed primarily of liquid iron and nickel?

    Answer: Outer core

    The outer core is made of liquid iron and nickel and generates Earth's magnetic field.

  2. The process by which water vapor in the atmosphere cools and becomes liquid water is called:

    Answer: Condensation

    Condensation occurs when water vapor loses energy and changes state to liquid water.

  3. According to Newton's second law of motion, force equals:

    Answer: mass × acceleration

    Newton's second law: F = ma (Force = mass × acceleration).

  4. Which type of rock forms when magma cools and solidifies?

    Answer: Igneous

    Igneous rocks form from the cooling and solidification of magma or lava.

  5. The Richter scale measures the:

    Answer: Magnitude of seismic energy released

    The Richter scale quantifies the magnitude (energy) of an earthquake.

  6. What causes the seasons on Earth?

    Answer: The tilt of Earth's axis as it orbits the Sun

    Earth's axial tilt causes different hemispheres to receive varying amounts of sunlight throughout the year.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. bsss.act.edu.au — Eligibility, exam format, passing score · verified Oct 2026
  2. bsss.act.edu.au — Test delivery, late registration, retake policy · verified Oct 2026