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Northern Ireland · CCEAQ&A
PhysicsQ&A by dot point
A short Q&A bank for every Northern Ireland Physics syllabus dot point. Each question and answer is drawn directly from our worked dot-point page, so you can scan key concepts before opening the long-form answer.
A2 1 Deformation, Thermal Physics, Circular Motion, SHM and Gravity
- Angular velocity and the period of circular motion, centripetal acceleration and centripetal force, and examples such as orbits, conical pendulums and banked tracks.3Q&A pairs
- Hooke's law and the spring constant, stress, strain and the Young modulus, elastic strain energy, and the behaviour of materials from stress-strain graphs.3Q&A pairs
- Newton's law of gravitation, gravitational field strength and potential, the motion of satellites including geostationary orbits, and Kepler's third law.3Q&A pairs
- The defining condition for simple harmonic motion, the equations for displacement, velocity and acceleration, energy in SHM, and free, damped and forced oscillations with resonance.4Q&A pairs
- Internal energy and temperature, specific heat capacity and specific latent heat, the gas laws and the ideal gas equation, and the kinetic theory of gases.3Q&A pairs
A2 2 Fields, Capacitors, Particles and Astronomy
- Stellar distances and luminosity, the Doppler effect and redshift, Hubble's law and the expanding universe, and the evidence for the Big Bang.4Q&A pairs
- Capacitance and the charge stored, the energy stored in a capacitor, capacitors in series and parallel, and the exponential charging and discharging through a resistor.3Q&A pairs
- Coulomb's law, electric field strength and electric potential, uniform and radial fields, and the parallels and differences between electric and gravitational fields.3Q&A pairs
- The force on a current-carrying conductor and on a moving charge, magnetic flux density, and electromagnetic induction with Faraday's and Lenz's laws.4Q&A pairs
- Quarks, leptons and the standard model, hadrons as baryons and mesons, antiparticles and annihilation, and the conservation laws governing particle interactions.3Q&A pairs
AS 1 Forces, Energy and Electricity
- Kirchhoff's two laws, series and parallel resistor combinations, electromotive force and internal resistance, and the potential divider.3Q&A pairs
- The equations of motion for uniform acceleration, Newton's three laws, linear momentum and impulse, and the conservation of momentum in collisions.4Q&A pairs
- Electric charge and current, potential difference, Ohm's law and resistance, resistivity, and the I-V characteristics of components.3Q&A pairs
- Forces as vectors, the moment of a force and the principle of moments, couples, centre of gravity, and the conditions for the equilibrium of a body.3Q&A pairs
- Physical quantities, SI base and derived units, prefixes and standard form, homogeneity of equations, and estimating and handling uncertainties.5Q&A pairs
- The difference between scalars and vectors, adding vectors by scale diagram and calculation, and resolving a vector into perpendicular components.3Q&A pairs
- Work done by a force, kinetic and gravitational potential energy, the principle of conservation of energy, power, and efficiency.3Q&A pairs
AS 2 Waves, Photons and Medical Physics
- The production and use of X-rays, ultrasound imaging and the acoustic impedance principle, and the use of radioactive tracers in medicine.3Q&A pairs
- The photon model and the energy of a photon, the photoelectric effect, the work function and threshold frequency, and Einstein's photoelectric equation.3Q&A pairs
- Refraction and refractive index, total internal reflection and the critical angle, optical fibres, and image formation by converging and diverging lenses.3Q&A pairs
- The principle of superposition, coherence and path difference, two-source and double-slit interference, diffraction, and stationary waves on strings and in pipes.3Q&A pairs
- Wave-particle duality, electron diffraction as evidence for the wave nature of particles, the de Broglie wavelength, and atomic energy levels and line spectra.3Q&A pairs
- Transverse and longitudinal waves, the wave quantities and the wave equation, the relationship between intensity and amplitude, and polarisation.3Q&A pairs