ILTS Science: Physics (243) study materials
ILTS Science: Physics (243) study resources

ILTS Science: Physics (243) study plan

ILTS Science: Physics (243) · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Mechanics

  • Solve one- and two-dimensional kinematics problems (projectile, relative velocity, free fall) and justify each step with a stated assumption.

  • Construct free-body diagrams for at least six standard situations: block on incline, Atwood machine, banked curve, elevator, hanging sign, and stacked blocks.

  • Apply Newton's second and third laws to connected-body systems that include static and kinetic friction, and predict the direction of each friction force.

  • Translate among position-time, velocity-time, and acceleration-time graphs, including reading displacement as signed area and acceleration as slope.

Your checkpoint

A 25-question timed mechanics quiz (35 minutes) scored at 80% or higher, plus a written error log that names the concept behind every missed item.

Week 2

Mechanics

  • Apply the work-energy theorem and conservation of mechanical energy to problems with non-conservative forces, and calculate the energy lost to friction.

  • Distinguish elastic from inelastic collisions and solve one- and two-dimensional momentum problems, including explosion and recoil cases.

  • Analyze uniform circular motion and calculate centripetal force, then extend to torque, rotational inertia, and angular momentum conservation.

  • Derive and use Kepler's third law and Newton's law of gravitation to find orbital period, orbital speed, and gravitational field strength.

  • Apply continuity and Bernoulli's equations to fluids in pipes, including pressure differences and lift/flow-rate reasoning.

Your checkpoint

A one-page mechanics decision map (which principle to use for which problem cue) plus 20 mixed mechanics problems solved at 75% accuracy or better.

Week 3

Electricity and Magnetism

  • Calculate electric force, field, and potential for point charges using superposition, and sketch field-line and equipotential patterns for dipoles and parallel plates.

  • Apply Gauss's law qualitatively to spherical, cylindrical, and planar symmetry to determine field magnitude and direction.

  • Compute equivalent capacitance and the energy stored in capacitors in series and parallel networks.

  • Analyze DC circuits using Ohm's law and Kirchhoff's rules, and calculate current, voltage drop, and power dissipated in each resistor.

Your checkpoint

A 30-question electrostatics-and-circuits problem set with fully worked solutions, scored at 78% or higher.

Week 4

Electricity and Magnetism

  • Apply the right-hand rules to determine magnetic force on moving charges and current-carrying wires, and sketch the field of solenoids and loops.

  • Use Faraday's law and Lenz's law to predict induced current direction and magnitude in changing-flux situations.

  • Explain how transformers, inductance, and basic AC circuits relate to electromagnetic induction, and connect changing E and B fields to electromagnetic waves.

  • Compare electric and magnetic field effects on a charged particle moving parallel versus perpendicular to the field.

Your checkpoint

A 40-question timed electricity-and-magnetism test (55 minutes) scored at 78% or higher, with every missed item reworked and re-quizzed one week later.

Week 5

Waves and Optics

  • Apply the wave equation and superposition to solve for frequency, wavelength, and speed, and analyze standing waves on strings and in open and closed pipes.

  • Calculate beat frequency, resonance, intensity level in decibels, and Doppler-shifted frequency for moving source or observer.

  • Construct accurate ray diagrams for converging and diverging lenses and for concave and convex mirrors, then verify each result with the thin-lens or mirror equation.

  • Apply Snell's law, critical angle, and total internal reflection to refraction problems.

  • Predict double-slit and diffraction-grating patterns and explain thin-film interference and polarization qualitatively.

Your checkpoint

A ray-diagram portfolio of 10 optics setups, each with diagram, calculated image position and magnification, and a check that diagram and calculation agree, plus a 25-question wave-and-optics set at 80% or higher.

Week 6

Thermodynamics & Nature of Science and Scientific Inquiry

  • Apply the first and second laws of thermodynamics to calculate heat, work, internal energy change, and entropy change for isothermal, adiabatic, isobaric, and isochoric processes.

  • Interpret PV diagrams and compute the efficiency of heat engines and coefficients of performance for refrigerators.

  • Relate kinetic theory of gases to temperature, root-mean-square speed, and internal energy, and distinguish conduction, convection, and radiation in heat transfer.

  • Design a controlled experiment for a physics question by stating a testable hypothesis, identifying independent, dependent, and controlled variables, and selecting appropriate measurement tools.

  • Calculate uncertainty, apply significant-figure rules, and interpret slope and intercept of a linearized data graph; state standard lab-safety practices for electricity and heat investigations.

Your checkpoint

A 20-question thermodynamics set at 80% or higher plus a one-page experimental design write-up with hypothesis, variables, data table template, and uncertainty treatment.

Week 7

Modern Physics & Nature of Science and Scientific Inquiry

  • Use photon energy, work function, and stopping potential to solve photoelectric-effect problems and compute threshold frequency.

  • Calculate de Broglie wavelength, atomic energy-level transitions, and spectral line wavelengths for hydrogen.

  • Solve nuclear decay problems for half-life, activity, and mass-energy equivalence, and balance nuclear equations for alpha, beta, and gamma processes.

  • Apply time dilation and length contraction to simple relativity scenarios and identify when classical approximations are valid.

  • Evaluate a science-and-technology claim by separating evidence from inference and identifying sources of bias in data reporting.

Your checkpoint

A modern-physics formula card (one page, 15 entries) created from memory, plus a 20-question quiz at 80% or higher and a written critique of one science news claim.

Week 8

Nature of Science and Scientific Inquiry & Mechanics & Electricity and Magnetism & Waves and Optics & Thermodynamics & Modern Physics

  • Complete two full-length timed practice tests under exam conditions and record pacing, flagged items, and per-domain accuracy.

  • Rework every item in the accumulated error log, then re-test only those concepts until each is answered correctly twice.

  • Re-derive from memory the 25 highest-yield formulas spanning mechanics, E&M, waves, thermodynamics, and modern physics.

  • Set a test-day plan specifying time-per-question pacing, skip-and-return rules, and how to use the reference table and calculator efficiently.

Your checkpoint

Two completed timed practice tests with a score of 80% or higher on the final one, plus a one-page remediation list on which every concept is marked closed.

Milestones

Week 2: Score at least 75% on a 30-question cumulative mechanics assessment and show the completed mechanics decision map with no missing problem type.

Week 4: Score at least 78% on the timed E&M test and correctly re-solve every missed item without notes; verify at least 6 of 8 problems in each of electrostatics, circuits, magnetism, and induction.

Week 6: Score at least 80% on the combined thermodynamics and nature-of-science check, and submit an experimental design that a peer could run without asking clarifying questions.

Week 8: Reach 80% or higher on a full-length timed practice test, with no single domain below 70%, and confirm the error log contains zero open items.