Close message Scootle will stop supporting resources that use the Adobe Flash plug-in from 18 Dec 2020. Learning paths that include these resources will have alerts to notify teachers and students that one or more of the resources will be unavailable. Click here for more info.

Learning objects Optics and refraction: focal point

TLF ID L1478

Look at light rays magnified by a lens. Notice how light converges after it leaves the lens. Examine how curvature and thickness of a lens affect focal length. This learning object is one in a series of three objects. The series is also packaged as a combined learning object.



Educational details

Key learning objectives
  • Students identify that light rays change direction when they pass through a lens.
  • Students demonstrate that the focal length of a lens is related to the curvature of its surfaces.
Educational value
  • Students investigate refraction and lenses by engaging with a simulation showing refraction of light rays by a lens.
  • Students adjust the thickness and curvature of a lens to observe the focal length.
  • Students choose between two hypotheses.
  • The simulation is accessible for further investigation after feedback has been given.
Year level

9

Learning area
  • science
Strand
  • Science/Physical sciences
  • Science/Science understanding
    Concept
    • Science/Light
    • Science/Refraction
    Skill
    • Analysis;
    • Application;
    • Comprehension;
    • Knowledge
    Student activity
    • Interactives;
    • Experiment;
    • Analysis;
    • Modelling
    Learning design
    • Experiential learning;
    • Independent learning;
    • Problem solving;
    • Visual learning

    Other details

    Contributors
    • Script writer
    • Name: Erica Dale
    • Organisation: Tungaroo Software
    • Address: Sydney NSW Australia
    • Subject matter expert
    • Name: Graham Coghill
    • Address: Marcus Beach QLD Australia
    • Technical implementer
    • Publisher
    • Date of contribution: 20 Sep 2013
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL: http://www.esa.edu.au/
    Access profile
    • Colour independence
    • Device independence
    • Hearing independence
    Learning resource type
    • Interactive Resource
    Browsers
    • Microsoft Internet Explorer - minimum version: 8.0 (MS-Windows) - maximum version: 9.0 (MS-Windows)
    • Firefox - minimum version: (MS-Windows)
    • Safari - minimum version: 5.1 (MacOS)
    Operating systems
    • MacOS - minimum version: 10.6
    • MS-Windows - minimum version: XP - maximum version: 7
    Rights
    • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.