Edexcel International GCSE Physics Revision Guide Executive function Problem solving 23 Section 3: Waves Students will be assessed on their Activity: Edexcel International GCSE Adaptability Analysis ability to: Physics Student Book: Pages d) Light and sound Complete examples Reasoning 109–115, 116 and 126 including calculations Decision making involving n = sin i/sin r. 3.17 practical: investigate the executive function refraction of light, using rectangular Refraction of ActiveBook: blocks, semicircular blocks and Page 109, animation practicals: triangular prisms Use rectangular glass or Perspex blocks to determine internal reflection and optical 3.18 know and use the relationship the angle of incidence and fibres: refraction: Page 113, between refractive index, angle of corresponding angle of animation incidence and angle of refraction: refraction for a number of light rays. Plot a graph of sin n = sin i / sin r Questions in Edexcel International (angle of incidence) against GCSE Physics Revision Guide: sin (angle of refraction) to Pages 45 to 48 and Pages 97 to 3.19 practical: investigate the obtain value of gradient 99 refractive index of glass, using a (refractive index). glass block. Investigate models to show from Internet, e.g. refraction, such as toy cars travelling into a region of sand. Investigate the behaviour of converging lenses, including real and virtual images. Video clip: (a) Demonstrations: Use an applet to show refraction. Demonstrate apparent depth of an ink spot seen through a measuring
Edexcel International GCSE Physics Revision Guide 23 Section 3: Waves d) Light and sound Students will be assessed on their ability to: 3.17 practical: investigate the refraction of light, using rectangular blocks, semicircular blocks and triangular prisms 3.18 know and use the relationship between refractive index, angle of incidence and angle of refraction: n = sin i / sin r 3.19 practical: investigate the refractive index of glass, using a glass block. Activity: Complete examples including calculations involving n = sin i/sin r. practicals: Use rectangular glass or Perspex blocks to determine the angle of incidence and corresponding angle of refraction for a number of light rays. Plot a graph of sin (angle of incidence) against sin (angle of refraction) to obtain value of gradient (refractive index). Investigate models to show refraction, such as toy cars travelling into a region of sand. Investigate the behaviour of converging lenses, including real and virtual images. Demonstrations: Use an applet to show refraction. Demonstrate apparent depth of an ink spot seen through a measuring Edexcel International GCSE Physics Student Book: Pages 109–115, 116 and 126 Refraction of ActiveBook: Page 109, animation internal reflection and optical fibres: refraction: Page 113, animation Questions in Edexcel International GCSE Physics Revision Guide: Pages 45 to 48 and Pages 97 to 99 from Internet, e.g. Video clip: (a) Executive function Adaptability Problem solving Analysis Reasoning Decision making executive function
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