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Science

Physical Science

Matter, energy, motion, and forces.

  • 11 chapters
  • 53 lessons
  • 53 visual guides
  • All free
Start hereWhat Physical Science StudiesFoundations of Physical Science · Define scope and connect chemistry and physics to testable questions.Start lesson

Chapters

1

Foundations of Physical Science

Science practices, measurement, units, uncertainty, and evidence.

4 lessons

Flashcards Practice test
  1. 1.1What Physical Science StudiesDefine scope and connect chemistry and physics to testable questions.Visual guide
  2. 1.2Investigations, Models, and EvidencePlan comparisons and judge claims from data.Visual guide
  3. 1.3Measurement, Units, and UncertaintyCalculate with units and interpret measurement limits.Visual guide
  4. 1.4Graphs and Scientific CommunicationInterpret trends, slopes, and evidence responsibly.Visual guide
2

Motion and Graphs

Position, displacement, speed, velocity, acceleration, and motion graphs.

5 lessons

Flashcards Practice test
  1. 2.1Position, Reference Frames, and DisplacementDefine position and distinguish path length from change in position.Visual guide
  2. 2.2Speed and VelocityCalculate average rates and interpret direction.Visual guide
  3. 2.3AccelerationDescribe changes in velocity with correct signs and units.Visual guide
  4. 2.4Position–Time GraphsRead slope, direction, and intervals from position data.Visual guide
  5. 2.5Velocity–Time Graphs and Motion ProblemsUse slope and signed area to interpret motion.Visual guide
3

Forces and Interactions

Forces, free-body diagrams, Newton’s laws, gravity, and friction.

5 lessons

Flashcards Practice test
  1. 3.1Forces and Free-Body DiagramsIdentify interactions and represent forces on a selected object.Visual guide
  2. 3.2Newton’s First and Second LawsRelate inertia, mass, net force, and acceleration.Visual guide
  3. 3.3Newton’s Third LawIdentify force pairs acting on different objects.Visual guide
  4. 3.4Gravity, Mass, and WeightConnect universal attraction to local gravitational weight.Visual guide
  5. 3.5Friction and Motion in ContextApply forces to realistic surfaces, stopping, and traction.Visual guide
4

Work, Energy, and Machines

Energy forms and transfer, kinetic and potential energy, work, power, and machines.

5 lessons

Flashcards Practice test
  1. 4.1Energy Forms and TransfersTrace energy among stores, transfers, and surroundings.Visual guide
  2. 4.2Kinetic and Potential EnergyCalculate energy changes from mass, speed, height, and springs.Visual guide
  3. 4.3Conservation of EnergyUse system boundaries to trace mechanical and thermal changes.Visual guide
  4. 4.4Work and PowerCalculate force-based energy transfer and its rate.Visual guide
  5. 4.5Simple Machines and EfficiencyAnalyze input/output force and distance with conservation.Visual guide
5

Thermal Energy and Energy Resources

Particle motion, heat transfer, phase change, energy sources, and tradeoffs.

5 lessons

Flashcards Practice test
  1. 5.1Temperature and Particle MotionRelate temperature to particle-scale energy and distinguish heat.Visual guide
  2. 5.2Heat TransferCompare conduction, convection, and radiation in context.Visual guide
  3. 5.3Specific Heat and Phase ChangeUse heating equations and particle models with correct units.Visual guide
  4. 5.4Energy Sources and Electricity GenerationTrace energy from resources through generators and grids.Visual guide
  5. 5.5Environmental Tradeoffs and Energy AccountingCompare sources with specified metrics and evidence.Visual guide
6

Electricity and Magnetism

Electric charge, circuits, magnetic fields, motors, generators, and induction.

5 lessons

Flashcards Practice test
  1. 6.1Charge and Electric ForcesExplain charge, interactions, and electric fields.Visual guide
  2. 6.2Current, Voltage, and ResistanceCalculate simple electrical quantities and interpret circuit models.Visual guide
  3. 6.3Series and Parallel CircuitsPredict path currents, voltages, and equivalent resistance.Visual guide
  4. 6.4Magnetic Fields and ElectromagnetsDescribe magnets, current-created fields, and controllable electromagnets.Visual guide
  5. 6.5Motors, Generators, and InductionTrace conversion between mechanical and electrical energy.Visual guide
7

Waves, Sound, and Light

Wave properties, sound, electromagnetic radiation, reflection, refraction, and images.

5 lessons

Flashcards Practice test
  1. 7.1Wave Properties and ModelsUse wavelength, frequency, speed, and amplitude to describe waves.Visual guide
  2. 7.2Sound and HearingConnect vibration, medium, pitch, loudness, and wave phenomena.Visual guide
  3. 7.3Electromagnetic SpectrumDescribe electromagnetic waves across wavelength, frequency, and energy.Visual guide
  4. 7.4Reflection and RefractionApply ray models at boundaries and explain color.Visual guide
  5. 7.5Lenses, Mirrors, and Image FormationUse ray geometry and focal length with stated sign conventions.Visual guide
8

Matter, Atoms, and the Periodic Table

Classification and states of matter, atomic structure, isotopes, periodic trends, and element families.

5 lessons

Flashcards Practice test
  1. 8.1Classifying MatterDistinguish substances, mixtures, and properties.Visual guide
  2. 8.2States of Matter and Particle ModelsExplain phase, pressure, and particle motion.Visual guide
  3. 8.3Atomic Structure and IsotopesUse proton, neutron, electron, and isotope counts.Visual guide
  4. 8.4Periodic Table PatternsUse atomic number, groups, and valence patterns.Visual guide
  5. 8.5Element Families and PropertiesCompare metals, nonmetals, metalloids, and groups in context.Visual guide
9

Bonds and Chemical Reactions

Valence and bond models, formulas, reaction evidence, atom balancing, and energy.

5 lessons

Flashcards Practice test
  1. 9.1Valence Electrons and Bonding ModelsExplain why atoms bond using electron and energy models.Visual guide
  2. 9.2Ionic and Covalent SubstancesRelate particle structures to properties and formula units.Visual guide
  3. 9.3Chemical Formulas and NamingRead formulas, name simple compounds, and distinguish coefficients.Visual guide
  4. 9.4Evidence and Types of ReactionsDistinguish reaction evidence from assumptions and classify patterns.Visual guide
  5. 9.5Balancing Equations and Reaction EnergyApply atom conservation and distinguish heat flow from activation energy.Visual guide
10

Solutions and Chemical Applications

Solution concentration, solubility, aqueous acid base chemistry, neutralization, and polymers.

5 lessons

Flashcards Practice test
  1. 10.1Solutions and ConcentrationDescribe mixtures and quantify concentration.Visual guide
  2. 10.2Solubility and DissolvingInterpret saturation and rates separately.Visual guide
  3. 10.3Acids, Bases, and pHUse aqueous acid base models and pH safely.Visual guide
  4. 10.4Neutralization and SaltsAnalyze products and reaction extent.Visual guide
  5. 10.5Carbon Compounds and PolymersConnect structures and materials properties.Visual guide
11

Nuclear Science and Modern Materials

Radioactivity, half-life, nuclear energy, and evidence-based materials design.

4 lessons

Flashcards Practice test
  1. 11.1Radioactivity and Nuclear ChangesDistinguish nuclear transformations from chemical reactions.Visual guide
  2. 11.2Half-Life and EvidenceModel exponential decay and evaluate measurements.Visual guide
  3. 11.3Fission, Fusion, and EnergyExplain nuclear energy pathways and constraints.Visual guide
  4. 11.4Materials Design and Course SynthesisApply structure-property reasoning across physical science.Visual guide