Numbers
AQA A-Level Physics 7408
Measurements and Their Errors
Particles and Radiation
Topic overviewConstituents of the atomStable and unstable nucleiParticles, antiparticles and photonsParticle interactionsClassification of particlesQuarks and antiquarksApplications of conservation lawsThe photoelectric effectCollisions of electrons with atomsEnergy levels and photon emissionWave-particle duality
Waves
Mechanics and Materials
Electricity
Further Mechanics and Thermal Physics
Fields and Their Consequences
Topic overviewFieldsNewton's lawGravitational field strengthGravitational potentialOrbits of planets and satellitesCoulomb's lawElectric field strengthElectric potentialCapacitanceParallel plate capacitorEnergy stored by a capacitorCapacitor charge and dischargeMagnetic flux densityMoving charges in a magnetic fieldMagnetic flux and flux linkageElectromagnetic inductionAlternating currentsTransformers
Nuclear Physics
AstrophysicsOptional topic
Topic overviewAstronomical telescope consisting of two converging lensesReflecting telescopesSingle dish radio telescopes, I-R, U-V and X-ray telescopesAdvantages of large diameter telescopesClassification by luminosityAbsolute magnitude, MClassification by temperature, black-body radiationPrinciples of the use of stellar spectral classesThe Hertzsprung-Russell (HR) diagramSupernovae, neutron stars and black holesDoppler effectHubble's lawQuasarsDetection of exoplanets
Medical PhysicsOptional topic
Topic overviewPhysics of visionDefects of vision and their correction using lensesEar as a sound detection systemSensitivity and frequency responseDefects of hearingSimple ECG machines and the normal ECG waveformUltrasound imagingFibre optics and endoscopyMagnetic resonance (MR) scannerThe physics of diagnostic X-raysImage detection and enhancementAbsorption of X-raysCT scannerImaging techniquesHalf-lifeGamma cameraUse of high-energy X-raysUse of radioactive implantsImaging comparisons
Engineering PhysicsOptional topic
Turning Points in PhysicsOptional topic
Topic overviewCathode raysThermionic emission of electronsSpecific charge of the electronPrinciple of Millikan's determination of the electronic charge, eNewton's corpuscular theory of lightSignificance of Young's double slits experimentElectromagnetic wavesThe discovery of photoelectricityWave–particle dualityElectron microscopesThe Michelson-Morley experimentEinstein's theory of special relativityTime dilationLength contractionRelativistic mass and energy
ElectronicsOptional topic
Topic overviewMOSFET (metal-oxide semiconducting field-effect transistor)Zener diodePhotodiodeHall effect sensorDifference between analogue and digital signalsLC resonance filtersThe ideal operational amplifierInverting amplifier configurationNon-inverting amplifier configurationSumming amplifier configurationReal operational amplifiersCombinational logicSequential logicAstablesPrinciples of communication systemsTransmission mediaTime-division multiplexingAmplitude (AM) and frequency modulation (FM) techniques
Particles and Radiation
Constituents of the atom
- 6 things to know
- Papers 1 and 3
Overview
Protons, neutrons and electrons, nucleon and proton number, isotopes, and specific charge.
What you need to know
Answer each one before you reveal it.
Your recallNot started
Numbers
What charge does each of the three sub-atomic particles carry?
Numbers
What is specific charge, and what values does an electron and a proton take?
Process
How is the specific charge of an ion or a nucleus calculated?
Key term
In nuclide notation ᴬ_Z X, what does the subscript Z represent?
Key term
In nuclide notation ᴬ_Z X, what does X represent?
Questions from this subtopic
Each one with the model answer underneath.
- 1
In the simple atomic model, what particles are found inside the nucleus?
Model answer
Protons and neutrons.
- 2
Where are electrons located in the simple model of the atom?
Model answer
Electrons orbit the nucleus.
- 3
What is the charge of a proton in coulombs?
Model answer
+1.60 × 10⁻¹⁹ C.
- 4
What is the charge of a neutron?
Model answer
Zero (the neutron has no charge).
- 5
State the charge of an electron in coulombs.
Model answer
−1.60 × 10⁻¹⁹ C.
- 6
What is the mass of a proton in kilograms?
Model answer
1.67 × 10⁻²⁷ kg.
Other ways to work this
The same content, four other ways.
What is inside Levo
Six ways to work the same material.
Every question in Particles and Radiation, on a schedule.
Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.
Or £46 a year, about £3.83 a month. Cancel anytime.