Mirrors and Lenses
Subjects / Core Science / Edexcel GCSE Science
Mirrors and lenses - without them we would be lost at sea. One of the many uses we have for reflecting and focusing light is in lighthouses, which beam light out across stormy seas and guide ships safely to harbour. We have known much of the science of lenses for thousands of years, even making them into reading glasses as long ago as 1300! In modern times, we have new materials that allow us to make lenses and mirrors far more accurately for use in fibre-optics and broadband communications. We will address the underlying mechanisms of refraction and reflection, and specifically the requirement to be able to draw ray diagrams to work out the action of a mirror or lens. In this title, we'll break this ancient science down into manageable chunks and focus on each in turn.
| Author: | Joe Rowing | Publisher: | GCSEPod® |
| Narrator: | Pauline Addis | ISBN: | 978-1-84906-294-7 |
| Video ISBN: | 978-1-84906-794-2 |
Chapters
- Reflection at a Plane Surface
- Object, Image and Focal Point
- Concave and Convex Mirrors
- Concave and Convex Lenses
- Uses of Mirrors and Lenses
Exam Board Relevance
- Edxcel
- AQA
- CEA
- IGCSE (EdExcel)
- OCR
- SQA
- WJEC
- IGCSE (CiE)
Includes original GCSEPod image art. Additional pictorial images created by Damon Smith
Curriculum and Exam Board Information
Key Issues
Titles
Chapters
- Angles of Incidence and Reflection
- Lenses
- Mirrors
- Refraction
- Refraction at an interface. Refraction by a prism
- Sound as a Wave
- The angle of incidence is equal to the angle of reflection
- The Nature of an Image
- The nature of an image is defined by its size relative to the object, whether it is upright or inverted relative to the object and whether it is real or virtual
- The nature of the image produced by a concave mirror for an object placed at different distances from the mirror
- The nature of the image produced by a convex mirror
- The nature of the image produced by a diverging lens. The nature of the image produced by a converging lens for an object placed at different distances from the lens. The use of a converging lens in a camera to produce an image of an object on a detecting
- The nature of the image produced by a plane mirror
- The normal is a construction-line perpendicular to the reflecting/refracting surface at the point of incidence
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