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EmSAT Physics Flashcards

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

Read the first 6 EmSAT Physics flashcards as text

  1. What causes a magnetic field around a current-carrying wire?

    Answer: Moving electric charges (current)

    A magnetic field is produced by moving electric charges, i.e., electric current. This is the basis of electromagnetism, discovered by Oersted.

  2. What is the principle behind an electric generator?

    Answer: Electromagnetic induction

    An electric generator works by electromagnetic induction: moving a conductor through a magnetic field (or changing the magnetic flux) induces an electromotive force (EMF) and generates current.

  3. What is the formula for pressure?

    Answer: P = F/A

    Pressure = Force ÷ Area (P = F/A). It is measured in Pascals (Pa), where 1 Pa = 1 N/m².

  4. What does Archimedes' principle state?

    Answer: The buoyant force equals the weight of fluid displaced

    Archimedes' principle states that the buoyant force on an object equals the weight of the fluid displaced by that object. This explains why objects float or sink.

  5. What is absolute zero on the Kelvin scale?

    Answer: 0 K

    Absolute zero is 0 K (Kelvin), equivalent to −273.15°C. It is the theoretical lowest possible temperature, where particles have minimum thermal energy.

  6. What happens to the volume of a gas when pressure increases at constant temperature?

    Answer: Volume decreases

    According to Boyle's Law, at constant temperature, the volume of a gas is inversely proportional to its pressure. If pressure increases, volume decreases.

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Sources & references

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  1. emsat.moe.gov.ae — Test delivery, eligibility, time limit, retake fee, retake policy, score release, exam format, exam information · verified Oct 2026
  2. mohesr.gov.ae — Eligibility · verified Oct 2026