OPTICS - types of lenses, uses and ray diagrams all
explained and the correction of eye defects
Doc Brown's GCSE level Physics study revision notes
Sub-index for this section on optics - lenses (F =
focal length of a convex lens)
1.
Reminders of what happens when light
rays pass through different shaped prisms
2.
The types and properties of lenses, how to construct ray
diagrams, measurement of focal length F
3.
Convex lens ray diagram for a real image when object is a distance of 2F
from the lens
4.
Convex lens ray
diagram for a real image if object is a distance between F and 2F from
lens
5.
Convex lens ray diagram for virtual image when object is at a distance
between F and
lens
6.
Convex lens ray diagram for when object is at a distance
beyond 2F
7.
Ray diagram for a
concave lens showing the divergence of parallel rays
8.
Ray diagram showing
the formation of a virtual image by a concave lens
9.
Eye defects - explaining short sightedness and long sightedness -
correction using lenses
See also
The
eye (gcse biology notes)
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WAVES - electromagnetic radiation, sound, optics-lenses, light and astronomy revision notes index
General
introduction to the types and properties of waves, ripple tank expts, how to do
wave calculations
Illuminated & self-luminous objects, reflection visible light,
ray box experiments, ray diagrams, mirror uses
Refraction and diffraction, the visible light
spectrum, prism investigations, ray diagrams explained
Electromagnetic spectrum,
sources, types, properties, uses (including medical) and dangers
The absorption and emission of radiation by
materials - temperature & surface factors including global warming
See also
Global warming, climate change,
reducing our carbon footprint from fossil fuel burning
Optics - types of lenses (convex, concave, uses),
experiments and ray
diagrams, correction of eye defects
The visible spectrum of colour, light filters and
explaining the colour of objects
Sound waves, properties explained, speed measure,
uses of sound, ultrasound, infrasound, earthquake waves
The Structure of the Earth, crust, mantle, core and earthquake waves (seismic wave
analysis)
Astronomy - solar system, stars, galaxies and
use of telescopes and satellites
The life cycle of stars - mainly worked out from emitted
electromagnetic radiation
Cosmology - the
Big Bang Theory of the Universe, the red-shift & microwave background radiation
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