Physics - Lower Secondary består av hundrevis av interaktive sider med illustrasjoner, animasjoner, video, 3D-modeller, tester og selvrettende oppgaver som aktiviserer og motiverer elevene.
\n \n \n \n force,\n \n \n \n \n \n energy,\n \n \n \n \n \n Motion,\n \n \n \n \n \n vector,\n \n \n \n \n \n scalar,\n \n \n \n \n \n mass,\n \n \n \n \n \n velocity,\n \n \n \n \n \n Voltage,\n \n \n \n \n \n equilibrium,\n \n \n \n \n \n temperature,\n \n \n \n \n \n newton,\n \n \n \n \n \n weight,\n \n \n \n \n \n wave,\n \n \n \n \n \n speed,\n \n \n \n \n \n current,\n \n \n \n \n \n power,\n \n \n \n \n \n quantities,\n \n \n \n \n \n law,\n \n \n \n \n \n waves,\n \n \n \n \n \n acceleration,\n \n \n \n \n \n light,\n \n \n \n \n \n field,\n \n \n \n \n \n transfer,\n \n \n \n \n \n distance,\n \n \n \n \n \n Kinetic,\n \n \n \n \n \n magnetic,\n \n \n \n \n \n potential,\n \n \n \n \n \n electric,\n \n \n \n \n \n heat,\n \n \n \n \n \n resistance,\n \n \n \n \n \n gas,\n \n \n \n \n \n conductor,\n \n \n \n \n \n elastic,\n \n \n \n \n \n resultant,\n \n \n \n \n \n sound,\n \n \n \n \n \n coil,\n \n \n \n \n \n gravity,\n \n \n \n \n \n time,\n \n \n \n \n \n free,\n \n \n \n \n \n variable,\n \n \n \n \n \n graph,\n \n \n \n \n \n uniformly,\n \n \n \n \n \n Kelvin,\n \n \n \n \n \n electrical,\n \n \n \n \n \n electromagnetic,\n \n \n \n \n \n reflection,\n \n \n \n \n \n balance,\n \n \n \n \n \n internal,\n \n \n \n \n \n Joule,\n \n \n \n \n \n magnitude,\n \n \n \n \n \n friction,\n \n \n \n \n \n conservation,\n \n \n \n \n \n work,\n \n \n \n \n \n space,\n \n \n \n \n \n fall,\n \n \n \n \n \n accelerate,\n \n \n \n \n \n Decelerate,\n \n \n \n \n \n Celsius,\n \n \n \n \n \n ampere,\n \n \n \n \n \n measure,\n \n \n \n \n \n Wavelength,\n \n \n \n \n \n interference,\n \n \n \n \n \n movement,\n \n \n \n \n \n virtual,\n \n \n \n \n \n displacement,\n \n \n \n \n \n mechanical,\n \n \n \n \n \n radiation,\n \n \n \n \n \n volume,\n \n \n \n \n \n earth,\n \n \n \n \n \n charge,\n \n \n \n \n \n area,\n \n \n \n \n \n pressure,\n \n \n \n \n \n proton,\n \n \n \n \n \n electron,\n \n \n \n \n \n diode,\n \n \n \n \n \n nuclear,\n \n \n \n \n \n application,\n \n \n \n \n \n frequency,\n \n \n \n \n \n satellite,\n \n \n \n \n \n amplitude,\n \n \n \n \n \n location,\n \n \n \n \n \n thermometer,\n \n \n \n \n \n scale,\n \n \n \n \n \n static,\n \n \n \n \n \n diffraction,\n \n \n \n \n \n combustion,\n \n \n \n \n \n efficiency,\n \n \n \n \n \n second,\n \n \n \n \n \n real,\n \n \n \n \n \n image,\n \n \n \n \n \n circuit,\n \n \n \n \n \n voltmeter,\n \n \n \n \n \n microwave,\n \n \n \n \n \n radioactive,\n \n \n \n \n \n isotope,\n \n \n \n \n \n electromagnets,\n \n \n \n \n \n solenoid,\n \n \n \n \n \n Density,\n \n \n \n \n \n propagation,\n \n \n \n \n \n weightlessness,\n \n \n \n \n \n angle,\n \n \n \n \n \n thermal,\n \n \n \n \n \n moment,\n \n \n \n \n \n oscillation,\n \n \n \n \n \n effect,\n \n \n \n \n \n strength,\n \n \n \n \n \n liquid,\n \n \n \n \n \n reaction,\n \n \n \n \n \n atom,\n \n \n \n \n \n medium,\n \n \n \n \n \n principle,\n \n \n \n \n \n Archimedes,\n \n \n \n \n \n neutron,\n \n \n \n \n \n television,\n \n \n \n \n \n system,\n \n \n \n \n \n threats,\n \n \n \n \n \n star,\n \n \n \n \n \n structure,\n \n \n \n \n \n hole,\n \n \n \n \n \n lens,\n \n \n \n \n \n induction,\n \n \n \n \n \n Eddy,\n \n \n \n \n \n transformer,\n \n \n \n \n \n slit,\n \n \n \n \n \n Diffraction and interference,\n \n \n \n \n \n engine,\n \n \n \n \n \n renewable,\n \n \n \n \n \n pump,\n \n \n \n \n \n braking,\n \n \n \n \n \n rolling,\n \n \n \n \n \n collision,\n \n \n \n \n \n momentum,\n \n \n \n \n \n inelastic,\n \n \n \n \n \n point,\n \n \n \n \n \n optical,\n \n \n \n \n \n focus,\n \n \n \n \n \n focal,\n \n \n \n \n \n parallel,\n \n \n \n \n \n household,\n \n \n \n \n \n conductors,\n \n \n \n \n \n alternating,\n \n \n \n \n \n ear,\n \n \n \n \n \n string,\n \n \n \n \n \n gamma,\n \n \n \n \n \n motor,\n \n \n \n \n \n critical,\n \n \n \n \n \n ferromagnetic,\n \n \n \n \n \n forces,\n \n \n \n \n \n plate,\n \n \n \n \n \n flight,\n \n \n \n \n \n escape,\n \n \n \n \n \n period,\n \n \n \n \n \n radius,\n \n \n \n \n \n rocket,\n \n \n \n \n \n trajectory,\n \n \n \n \n \n cool,\n \n \n \n \n \n expansion,\n \n \n \n \n \n phase,\n \n \n \n \n \n contact,\n \n \n \n \n \n Lunar,\n \n \n \n \n \n Solar,\n \n \n \n \n \n Umbra,\n \n \n \n \n \n penumbra,\n \n \n \n \n \n flow,\n \n \n \n \n \n eye,\n \n \n \n \n \n resonance,\n \n \n \n \n \n compression,\n \n \n \n \n \n load,\n \n \n \n \n \n Pascal,\n \n \n \n \n \n solid,\n \n \n \n \n \n transformation,\n \n \n \n \n \n refraction,\n \n \n \n \n \n direct,\n \n \n \n \n \n defect,\n \n \n \n \n \n fission,\n \n \n \n \n \n source,\n \n \n \n \n \n spherical,\n \n \n \n \n \n measurement,\n \n \n \n \n \n cell,\n \n \n \n \n \n first,\n \n \n \n \n \n inertia,\n \n \n \n \n \n fusion,\n \n \n \n \n \n conversion,\n \n \n \n \n \n series,\n \n \n \n \n \n gases,\n \n \n \n \n \n emission,\n \n \n \n \n \n insulator,\n \n \n \n \n \n mirror,\n \n \n \n \n \n spring,\n \n \n \n \n \n Hook,\n \n \n \n \n \n standing,\n \n \n \n \n \n buoyant,\n \n \n \n \n \n galaxy,\n \n \n \n \n \n universe,\n \n \n \n \n \n matter,\n \n \n \n \n \n particle,\n \n \n \n \n \n air,\n \n \n \n \n \n drag,\n \n \n \n \n \n average,\n \n \n \n \n \n thermistor,\n \n \n \n \n \n third,\n \n \n \n \n am,\n \n \n \n telephone,\n \n \n \n navigation,\n \n \n \n communication,\n \n \n \n GPS,\n \n \n \n fm,\n \n \n \n coding,\n \n \n \n modulation,\n \n \n \n Application of waves for communication,\n \n \n \n accelerating motion,\n \n \n \n accelerating,\n \n \n \n Molecules,\n \n \n \n Fahrenheit,\n \n \n \n thermoscope,\n \n \n \n electricity,\n \n \n \n photocopier,\n \n \n \n lighting,\n \n \n \n spark,\n \n \n \n discharge,\n \n \n \n poses,\n \n \n \n Application of static electricity and the threats it poses,\n \n \n \n red,\n \n \n \n black,\n \n \n \n white,\n \n \n \n diagram,\n \n \n \n stars,\n \n \n \n constellation,\n \n \n \n giant,\n \n \n \n H-R,\n \n \n \n dwarves,\n \n \n \n supernova,\n \n \n \n pulsar,\n \n \n \n evolution,\n \n \n \n The structure and the evolution of stars,\n \n \n \n mutual,\n \n \n \n self-induction,\n \n \n \n Electromagnetic induction,\n \n \n \n high,\n \n \n \n transmission,\n \n \n \n Transfer of electrical energy,\n \n \n \n ventilation,\n \n \n \n economy,\n \n \n \n recovery,\n \n \n \n Efficiency and economy,\n \n \n \n kinetic energy,\n \n \n \n potential energy,\n \n \n \n converging,\n \n \n \n diverging,\n \n \n \n A lens,\n \n \n \n ammeter,\n \n \n \n fuse,\n \n \n \n Current in a household,\n \n \n \n generator,\n \n \n \n dynamo,\n \n \n \n Alternating current and a generator,\n \n \n \n waterfall,\n \n \n \n windmill,\n \n \n \n instantaneous,\n \n \n \n horsepower,\n \n \n \n meanwork,\n \n \n \n music,\n \n \n \n sing,\n \n \n \n sounds,\n \n \n \n wind,\n \n \n \n pitch,\n \n \n \n tuning,\n \n \n \n timbre,\n \n \n \n Sounds in music,\n \n \n \n radio,\n \n \n \n range,\n \n \n \n ranges,\n \n \n \n infrared,\n \n \n \n ultraviolet,\n \n \n \n x-ray,\n \n \n \n The ranges of electromagnetic waves,\n \n \n \n smoke,\n \n \n \n dating,\n \n \n \n rock,\n \n \n \n therapy,\n \n \n \n sterilisation,\n \n \n \n radioactivity,\n \n \n \n tracer,\n \n \n \n radiocarbon,\n \n \n \n defectoscopy,\n \n \n \n Application of radioactivity,\n \n \n \n brush,\n \n \n \n frame,\n \n \n \n electric motor,\n \n \n \n commutator,\n \n \n \n cuboids,\n \n \n \n secondary,\n \n \n \n primary,\n \n \n \n ratio,\n \n \n \n flux,\n \n \n \n rms,\n \n \n \n toroid,\n \n \n \n seismic,\n \n \n \n tsunami,\n \n \n \n seismograph,\n \n \n \n Seismic waves,\n \n \n \n addition,\n \n \n \n perpendicular,\n \n \n \n Addition of forces,\n \n \n \n capacitor,\n \n \n \n capacitance,\n \n \n \n capacitors,\n \n \n \n satellites,\n \n \n \n geostationary,\n \n \n \n orbital,\n \n \n \n circular,\n \n \n \n curvilinear,\n \n \n \n projectile,\n \n \n \n Curvilinear motion,\n \n \n \n thermal expansion,\n \n \n \n Levers,\n \n \n \n lever,\n \n \n \n pulley,\n \n \n \n tackle,\n \n \n \n pulleys,\n \n \n \n Levers and pulleys,\n \n \n \n pendulum,\n \n \n \n oscillations,\n \n \n \n eclipses,\n \n \n \n eclipse,\n \n \n \n total,\n \n \n \n partial,\n \n \n \n annular,\n \n \n \n boiling,\n \n \n \n evaporation,\n \n \n \n condensation,\n \n \n \n vaporisation,\n \n \n \n Evaporation and condensation,\n \n \n \n insulators,\n \n \n \n Conductors and insulators,\n \n \n \n electroscope,\n \n \n \n colours,\n \n \n \n colour,\n \n \n \n mixing,\n \n \n \n perception,\n \n \n \n cones,\n \n \n \n blindness,\n \n \n \n Purkinje,\n \n \n \n clock,\n \n \n \n damped,\n \n \n \n forced,\n \n \n \n thrust,\n \n \n \n Hydraulic,\n \n \n \n hydrostatic,\n \n \n \n Pascal principle,\n \n \n \n Pressure of a liquid,\n \n \n \n device,\n \n \n \n Work and power of current,\n \n \n \n absorption,\n \n \n \n incidence,\n \n \n \n dispersion,\n \n \n \n Reflection and refraction of waves,\n \n \n \n units,\n \n \n \n AC,\n \n \n \n DC,\n \n \n \n rectifier,\n \n \n \n supply,\n \n \n \n rectifiers,\n \n \n \n Power supply units and rectifiers,\n \n \n \n bomb,\n \n \n \n chain,\n \n \n \n nuclear fission,\n \n \n \n binding,\n \n \n \n beam,\n \n \n \n laser,\n \n \n \n photons,\n \n \n \n monochromaticity,\n \n \n \n divergence,\n \n \n \n coherence,\n \n \n \n camera,\n \n \n \n glass,\n \n \n \n binoculars,\n \n \n \n photographic,\n \n \n \n instrument,\n \n \n \n microscope,\n \n \n \n telescope,\n \n \n \n instruments,\n \n \n \n magnifying,\n \n \n \n visual,\n \n \n \n refracting,\n \n \n \n reflecting,\n \n \n \n Optical instruments,\n \n \n \n LED,\n \n \n \n resistor,\n \n \n \n bias,\n \n \n \n LDR,\n \n \n \n colour depended,\n \n \n \n Light and current,\n \n \n \n noise,\n \n \n \n protect,\n \n \n \n intensity,\n \n \n \n loudness,\n \n \n \n decibel,\n \n \n \n amplification,\n \n \n \n amplify,\n \n \n \n Sound intensity,\n \n \n \n plane,\n \n \n \n transverse,\n \n \n \n longitudinal,\n \n \n \n Mechanical waves,\n \n \n \n attraction,\n \n \n \n objects,\n \n \n \n charging,\n \n \n \n Charging objects,\n \n \n \n Ohm,\n \n \n \n ohm's,\n \n \n \n Ohm's Law,\n \n \n \n rectilinear,\n \n \n \n tv,\n \n \n \n tube,\n \n \n \n Oscilloscope,\n \n \n \n CRT,\n \n \n \n Lorentz,\n \n \n \n cathode,\n \n \n \n CRT and an oscilloscope,\n \n \n \n not,\n \n \n \n nor,\n \n \n \n logic,\n \n \n \n logical,\n \n \n \n gate,\n \n \n \n NAND,\n \n \n \n flip-flop,\n \n \n \n gates,\n \n \n \n Logic gates,\n \n \n \n stable,\n \n \n \n unstable,\n \n \n \n topple,\n \n \n \n glasses,\n \n \n \n accommodation,\n \n \n \n pupil,\n \n \n \n sight,\n \n \n \n retina,\n \n \n \n The eye,\n \n \n \n graphs,\n \n \n \n Graphs of motion,\n \n \n \n arm,\n \n \n \n Spanner,\n \n \n \n torque,\n \n \n \n see-saw,\n \n \n \n The moment of a force,\n \n \n \n freezing,\n \n \n \n melting,\n \n \n \n Melting and freezing,\n \n \n \n simple,\n \n \n \n station,\n \n \n \n machines,\n \n \n \n Kirchhoff,\n \n \n \n Direct current circuit,\n \n \n \n information,\n \n \n \n Electromagnetic waves,\n \n \n \n Expansion of gases,\n \n \n \n specific,\n \n \n \n Specific heat,\n \n \n \n capacity,\n \n \n \n cells,\n \n \n \n electrode,\n \n \n \n batteries,\n \n \n \n battery,\n \n \n \n Cells and batteries,\n \n \n \n accumulator,\n \n \n \n electrolyte,\n \n \n \n cable,\n \n \n \n fibre,\n \n \n \n Refraction of light,\n \n \n \n optic,\n \n \n \n wire,\n \n \n \n electric current,\n \n \n \n gravitation,\n \n \n \n centrifugal,\n \n \n \n ray,\n \n \n \n reflector,\n \n \n \n Reflection of light,\n \n \n \n code,\n \n \n \n systems,\n \n \n \n signal,\n \n \n \n decoding,\n \n \n \n morse,\n \n \n \n analogue,\n \n \n \n digital,\n \n \n \n encoding,\n \n \n \n Digital systems,\n \n \n \n Doppler,\n \n \n \n Doppler effect,\n \n \n \n Force measurement,\n \n \n \n Force and acceleration,\n \n \n \n pattern,\n \n \n \n gap,\n \n \n \n edge,\n \n \n \n bending,\n \n \n \n Diffraction and interference of mechanical waves,\n \n \n \n probability,\n \n \n \n isotopes,\n \n \n \n decay,\n \n \n \n half-life,\n \n \n \n Decay law,\n \n \n \n Buoyant force,\n \n \n \n sink,\n \n \n \n balloons,\n \n \n \n submarine,\n \n \n \n bodies,\n \n \n \n immersion,\n \n \n \n floating,\n \n \n \n Floating bodies,\n \n \n \n echo,\n \n \n \n supersonic,\n \n \n \n reverberation,\n \n \n \n magnet,\n \n \n \n magnetic field,\n \n \n \n magnetisation,\n \n \n \n diamagnetic,\n \n \n \n paramagnetic,\n \n \n \n sun,\n \n \n \n planets,\n \n \n \n galaxies,\n \n \n \n plastic,\n \n \n \n Diffusion,\n \n \n \n properties,\n \n \n \n tension,\n \n \n \n meniscus,\n \n \n \n wetting,\n \n \n \n Properties of matter,\n \n \n \n Electromagnetic force,\n \n \n \n solids,\n \n \n \n symbol,\n \n \n \n oxygen,\n \n \n \n carbon,\n \n \n \n nitrogen,\n \n \n \n liquids,\n \n \n \n crystal,\n \n \n \n monocrystal,\n \n \n \n polycrystal,\n \n \n \n allotropy,\n \n \n \n amorphous,\n \n \n \n Gases,\n \n \n \n liquids and solids,\n \n \n \n planet,\n \n \n \n comet,\n \n \n \n The solar system,\n \n \n \n Meteoroid,\n \n \n \n Kepler,\n \n \n \n planetoid,\n \n \n \n levels,\n \n \n \n Spectrum,\n \n \n \n Bohr,\n \n \n \n Structure of an atom,\n \n \n \n conduction,\n \n \n \n convection,\n \n \n \n Thermal transfer,\n \n \n \n refrigerator,\n \n \n \n sources,\n \n \n \n Sources of heat,\n \n \n \n cost,\n \n \n \n meter,\n \n \n \n counter,\n \n \n \n methods,\n \n \n \n saving,\n \n \n \n Electric energy and methods of energy saving,\n \n \n \n semiconductor,\n \n \n \n junction,\n \n \n \n n-type,\n \n \n \n p-type,\n \n \n \n p-n,\n \n \n \n n-p,\n \n \n \n shape,\n \n \n \n factor,\n \n \n \n Air resistance,\n \n \n \n position,\n \n \n \n Displacement,\n \n \n \n distance and velocity,\n \n \n \n bulb,\n \n \n \n resistors,\n \n \n \n non-linear,\n \n \n \n nonlinear,\n \n \n \n Variable resistors and nonlinear resistors,\n \n \n \n photo,\n \n \n \n characteristic,\n \n \n \n base,\n \n \n \n switch,\n \n \n \n transistor,\n \n \n \n collector,\n \n \n \n emitter,\n \n \n \n amplifying,\n \n \n \n scanner,\n \n \n \n Ultrasound,\n \n \n \n echolocation,\n \n \n \n audibility,\n \n \n \n infrasound,\n \n \n \n Infrasound and ultrasound,\n \n \n \n kitchen,\n \n \n \n phone,\n \n \n \n mobile,\n \n \n \n ozone,\n \n \n \n greenhouse,\n \n \n \n related,\n \n \n \n ionising,\n \n \n \n Threats related to electromagnetic waves,\n \n \n \n engineering,\n \n \n \n conventional,\n \n \n \n nuclear energy,\n \n \n \n reactor,\n \n \n \n new,\n \n \n \n quarter,\n \n \n \n full,\n \n \n \n moon,\n \n \n \n tides,\n \n \n \n The Moon,\n \n \n \n pipe,\n \n \n \n silence,\n \n \n \n harmonic,\n \n \n \n beats,\n \n \n \n Interference of sound waves,\n \n \n \n free fall,\n \n \n \n roll,\n \n \n \n walk,\n \n \n \n action,\n \n \n \n The force of reaction,\n \n \n \n big,\n \n \n \n bang,\n \n \n \n models,\n \n \n \n Hubble,\n \n \n \n cosmology,\n \n \n \n cosmological,\n \n \n \n CMB,\n \n \n \n The Universe,\n \n \n \n flights,\n \n \n \n Space flights,\n \n \n \n chamber,\n \n \n \n hydrogen,\n \n \n \n pellet,\n \n \n \n atomic,\n \n \n \n thermonuclear,\n \n \n \n controlled,\n \n \n \n Nuclear fusion,\n \n \n \n state,\n \n \n \n ideal,\n \n \n \n laws,\n \n \n \n isobaric,\n \n \n \n adiabatic,\n \n \n \n isochoric,\n \n \n \n isothermal,\n \n \n \n Gas laws,\n \n \n \n Mirrors,\n \n \n \n concave,\n \n \n \n convex,\n \n \n \n Spherical mirrors,\n \n \n \n beta,\n \n \n \n alpha,\n \n \n \n Nuclear radiation,\n \n \n \n conversions,\n \n \n \n Energy conversions\n \n \n
\n