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Biology 2018 Solutions for Leaving Cert Higher Level

You can access the paper via the examinations.ie website. No marking scheme is available at the time of writing. You may also like: Leaving Cert Biology.
Q1. (a) 1. To receive energy for cellular reactions to occur 2. For growth and repair  (b) Many sugar units joined together  (c) Cellulose  (d) Contains glycerol and three fatty acids  (e) Phospholipids are found in cell membranes  (f) Biuret test 
Q2. (a) Living factor  (b) The place where an organism lives  (c) All of the different populations living in an area  (d) All members of the same species living in an area  (e) The functional role of an organism in an ecosystem  (f) The part of the Earth that sustains life  (g) Checking for the presence or absence of an organism in an ecosystem 
Q3. (a) Interphase  (b) Cell division in which one cell becomes two cells and the number of chromosomes is retained. The genetic material of the daughter cell is identical to the mother cell.  (c)1. The chromosome number is halved in meiosis  2. Meiosis involves 2 c…

Leaving Cert Physics: Predictions 2017








2016
2015
2014
2013
2012
Experiments Levers Boyle’s law Conservation of momentum Levers Acceleration due to gravity

Frequency/length of a string Specific latent heat of vaporisation of water Refractive index Boyle’s law Focal length of a converging lens

Wavelength of monochromatic light Wavelength of monochromatic light Speed of sound in air (tuning fork) Focal length of a concave mirror Frequency/length of a string

Resistivity of nichrome Variation resistance with temp of a metallic conductor Joule’s law Variation of current with potential difference I/V for a semiconductor diode






Long Questions Definitions Definitions Definitions Definitions Definitions

SHM and gravity Gravity and electromagnetic Mechanics Gravity Mechanics

Heat and energy X-rays, photoelectric effect Light and waves Resonance Light and waves

Semiconductors Electric charge Nuclear physics Electricity Nuclear physics

Nuclear physics Mechanical waves Electric charge Radioactivity Electricity: resistance, Wheatstone bridge

Electromagnetic and electricity Particle physics and electricity Doppler effect and electricity Linear accelerators and galvanometers Particle physics and applied electricity

Light: geometrical and modern Electromagnetic and electricity Particle physics and applied electricity Seismometers (mechanics, electromagnetic, etc) Wind turbines (mechanics, sounds, etc)
Question 12 Mechanics and nuclear Mechanics SHM SHM Mechanics

Electric field Geometrical optics Geometrical optics Light and waves Geometrical optics

Doppler effect and circular motion Temperature and electivity Heat Electric charge Heat

Pair annihilation or motors Radioactivity Electomagnetic Heat: thermocouple Light and waves

As you can see from the table above, the experiments tend to repeat! The Doppler effect and nuclear physics get more than their fair share. Mechanics is everywhere and tends to always be the same - the same formulas over and over again. Electricity is a little more inventive because it covers more things in less detail. Radioactivity seems to be left out a lot. All in all, Physics appears quite balanced as a subject with few idiosyncrasies.

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