LC Physics study materials
LC Physics study resources

LC Physics case studies

LC Physics · Put your knowledge to work in context.

Leaving Certificate Physics (Fisic) is the Irish senior-cycle physics qualification, studied over two years and examined by the State Examinations Commission. It suits students who want a physics-based science subject for CAO entry - engineering, physics, computing, and many medical and health courses - or who simply want a quantitative science alongside another science subject. The LC Physics case studies are 5 cases and about 3,849 words.

1

Skid Marks, Wet Asphalt and a Speed Allegation

At 07:40 on a wet October morning a delivery van left 38 m of continuous skid marks on a straight, level stretch of national road before stopping. The speed limit is 100 km/h.

770 words, about 4 min
2

The Laser Pointer That Was 'Faulty'

A Leaving Certificate student is measuring the wavelength of a red laser pointer using a transmission diffraction grating stamped "300 lines per mm". She mounts the grating in a holder on an optical bench, aims the laser at it and places a screen 1.85 m from the grating, measured from the front face of the holder.

782 words, about 4 min
3

Why the Science-Fair Turbine Won't Light Its Lamp

A Transition Year group has built a small wind turbine for a science fair. The generator is a coil of 250 turns, each of area 4.0 × 10⁻³ m², rotating in a uniform magnetic field of 0.18 T.

816 words, about 4 min
4

Scheduling a Technetium Dose and Deciding When Waste Is Waste

A nuclear medicine department elutes its Mo-99/Tc-99m generator at 07:00, obtaining 12 GBq of technetium-99m in 15 mL of saline. Tc-99m has a half-life of 6.0 h and emits a 140 keV gamma ray; it is a pure gamma emitter.

699 words, about 3 min
5

Keeping Vaccines Cold With 1.5 kg of Ice

A mobile vaccination team will run a clinic in a sports hall from 09:00 to 18:00. Their insulated cool box is packed at 08:30 with 1.5 kg of ice taken from a freezer at −5.0 °C.

782 words, about 4 min