Physics Zen

South Korea

CSAT (Suneung) Physics I

Focused practice in the style of Korea’s CSAT Physics I across its three units: mechanics and energy, matter and electromagnetic fields, and waves and communication. Semiconductors and magnetic materials are not included.

25 skills · g = 10 m/s²

Conventions

  • The path follows the three units of Physics I. It is focused practice, not a complete mock paper.
  • Not included: energy bands, semiconductors and diodes, and the magnetic properties of materials. Matter waves are drilled as calculations; the electron microscope is not.
  • General problems ask for a number, often where the paper would ask for a ratio or a statement judgment. The exam-style items carry the paper’s form.
  • Problems use g = 10 m/s².
  • The CSAT on 19 November 2026 (the 2027 CSAT) is the last with Physics I. From the 2028 CSAT, science is examined as Integrated Science, which has its own path.
  • Physics Zen is independent exam-style practice, not official exam material, and is not affiliated with the Korea Institute of Curriculum and Evaluation (KICE).

Units on this path

Ⅰ Mechanics and energy

  • Uniform Motion: Relate distance, speed, and time at constant velocity, and convert km/h to m/s
  • Uniform Acceleration: Use the constant-acceleration equations and read velocity-time graphs
  • Free Fall: Drop and throw objects under gravity: fall time, impact speed, maximum height
  • Newton's Laws: Apply F = ma, add forces along a line, and tell mass from weight
  • Work: Find the work a force does, at an angle to the motion and against friction
  • Kinetic & Potential Energy: Compute kinetic and gravitational potential energy, and work back to speed or height
  • Conservation of Energy: Trade height for speed on a frictionless path, and account for what friction takes
  • Momentum & Impulse: Find momentum and impulse, and the average force behind a change of motion
  • Conservation of Momentum: Apply momentum conservation to collisions that stick together and to recoil
  • Elastic Collisions: Handle collisions that also conserve kinetic energy, starting with equal masses
  • First Law: Track internal energy against the heat added and the work a gas does
  • Engines & Efficiency: Find the efficiency of a heat engine and the Carnot limit on it
  • Mass-Energy: Convert a mass defect into energy and find the binding energy per nucleon
  • Time Dilation & Length Contraction: Decide which observer measures the proper time or length, and find the energy of a fast particle

Ⅱ Matter and electromagnetic fields

Ⅲ Waves and communication

  • Wave Speed & Frequency: Link speed, frequency and wavelength, and find the speed of a wave on a string
  • Wave Graphs & Interference: Read wave graphs against position and time, use the sine-wave equation, and find where two sources reinforce or cancel
  • Electromagnetic Spectrum: Turn wavelength into frequency for light and radio, place a wave in its band, and send light through polarisers
  • Reflection & Refraction: Apply Snell's law, find the critical angle and the speed of light in a medium
  • Photons & Photoelectric Effect: Get a photon's energy from its wavelength and the electrons it can knock loose
  • Matter Waves & X-rays: Find the de Broglie wavelength of a particle, the cutoff of an X-ray tube and the spacing from a Bragg reflection

How Physics Zen helps

The path drills 25 skills across the three Physics I units, from constant acceleration, momentum and heat engines to Coulomb’s law, magnetic fields of currents, induction, wave graphs, the photoelectric effect, matter waves and special relativity. Exam-style items use five options, and some offer a 보기 part where you judge three statements ㄱ, ㄴ, ㄷ. Generated values, instant checking and worked solutions apply throughout.

Topics on this path

Guides

How to Prepare for Suneung Physics I, and What Changes in 2028

Suneung Physics I on 19 November 2026: the official format, a unit-by-unit drill table, a final-weeks plan, and what Integrated Science means from 2028.

Physics Zen is an independent practice tool. It is not affiliated with College Board, the IQB, the French Ministry of Education or any other exam board.

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