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Physics Leaving Cert Revision Tips

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Quick Check

For each experiment check that you can do can do each of the following:

  • Draw a fully labelled diagram which includes all essential apparatus (have you included the apparatus necessary to obtain values for both variables?)
  • Be able to state how the two sets of values were obtained (this is a very common question)
  • Describe what needs to be adjusted to give a new set of data
  • Write down the relevant equation if there is one associated with the experiment
  • Be able to state how the data in the table will need to be adjusted.
  • Be able to list three sources of error/precautions

If the experiment involves a graph

  • Know how the data provided will need to be adjusted
  • Know what goes on each axis
  • Know how to use the slope of the graph to obtain the desired answer
  Experiment
1. Measurement of the focal length of a concave mirror
2. Snell’s law of refraction
3. Measurement of the focal length of a convex lens
4. Measurement of velocity and acceleration
5. Measurement of acceleration due to gravity (g) using the freefall method
6. To show that acceleration is proportional to the force which caused it (F = ma)
7. To verify the principle of conservation of momentum
8. Verification of Boyle’s Law
9. Investigation of the laws of equilibrium for a set of co-planar forces
10. Investigation of the relationship between periodic time and length for a simple pendulum and hence calculation of g.
11. To calibrate a thermometer using the laboratory mercury thermometer as a standard
12. Measurement of the specific heat capacity of water
13. Measurement of the specific latent heat of fusion of ice
14. Measurement of the specific latent heat of vaporisation of water
15. To measure the speed of sound in air
16. Investigation of the variation of fundamental frequency of a stretched string with length
17. Investigation of the variation of fundamental frequency of a stretched string with tension
18. Measurement of the wavelength of monochromatic light
19. To measure the resistivity of the material of a wire
20. To investigate the variation of the resistance of a metallic conductor with temperature
21. To investigate the variation of the resistance of a thermistor with temperature
22. To investigate the variation of current (I) with potential difference (V) for a thin metallic conductor
23. To investigate the variation of current (I) with potential difference (V) for a filament bulb
24. To investigate the variation of current (I) with potential difference (V) for copper electrodes in a copper-sulphate solution
25. To investigate the variation of current (I) with potential difference (V) for a semiconductor diode
26. To verify Joule’s Law

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