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February 25th, 2015

25/2/2015

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Did a number of light experiments:
  • Light travels in straight lines
  • Reflection of light in a plane mirror
  • Building a periscope
  • Light refracted through glass
  • Light refracted through lenses
  • Light refracted through water
  • Light is a form of energy - Crooke's Radiometer
  • Dispersion of white light
  • Using a Newton Wheel
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February 24th, 2015

24/2/2015

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Discussed Light as a form of energy.

Remember: energy is the ability to do work or move something.
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February 23rd, 2015

23/2/2015

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Today we started Chapter 39 Light.
Key ideas:
  • Luminous v non-luminous
  • Light is energy
  • Travels in straight lines
  • Shadows
  • Dispersion
  • Spectrum (ROYGBIV)
Light Part 1
HW: Finish worksheets on Force, Motion and Pressure for Wednesday
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February 11th, 2015

11/2/2015

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Finished Pressure.

Worked through questions on handout worksheets.
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February 10th, 2015

10/2/2015

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Introduced Chapter 36 Pressure
pressure_powerpoint.pdf
File Size: 872 kb
File Type: pdf
Download File
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February 09th, 2015

9/2/2015

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Today we reviewed Forces Looking at several questions from Junior Cert Papers.
force_exam_questions.pdf
File Size: 828 kb
File Type: pdf
Download File
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February 04th, 2015

4/2/2015

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Today we did two experiments:
  • Finding the Centre of Gravity of a Lamina
  • Demonstrating The Law of the Lever
HW: Write an account of these experiments in your notes copy.
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February 03rd, 2015

3/2/2015

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February 02nd, 2015

2/2/2015

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Today we discussed the ideas of:
  • Equilibrium - an object can be balanced in stable, unstable or neutral equilibrium.
  • Centre of Gravity - the point through which the weight of an object appears to act.


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