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PAX Physics Fundamentals Flashcards

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

Read the first 6 PAX Physics Fundamentals flashcards as text

  1. Which of the following is the SI unit of force?

    Answer: Newton

    The Newton (N) is the SI unit of force, defined as kg·m/s².

  2. What happens to the speed of light as it moves from air into glass?

    Answer: It decreases

    Light slows down when it enters a denser medium like glass.

  3. Which type of energy is stored in a compressed spring?

    Answer: Potential energy

    A compressed spring stores elastic potential energy.

  4. An object in motion will remain in motion unless acted upon by an external force. This is Newton's:

    Answer: First Law

    Newton's First Law (law of inertia) states that objects maintain their state of motion unless a net force acts on them.

  5. What is the term for the bending of light as it passes from one medium to another?

    Answer: Refraction

    Refraction is the bending of light when it passes between media with different densities.

  6. Which of the following correctly states the relationship between work, force, and distance?

    Answer: W = F × d

    Work (W) equals force (F) multiplied by distance (d): W = F × d.

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  1. nln.org — Exam format, time limit, passing score, score release, score validity, fees, retake policy, exam information · verified Oct 2026