Light moves very fast light travels at 300,000 km per second.
Light and shadows• The shadow of an objet is always formed on the opposite side to the source of light.
Colours colours mixtures• The light we get from the • When we mixture yellow & blue, we get: green. sun is called white light.• White light is a mixture of When we mixture red & seven colours: blue we get : purple. red,orange,yellow,green, When we mixture• Blue,indigo, and violet. red & yellow we get: orange. and yellow. THESE THE PRIMARY COLOURS.
• TransparentBodies and light.1. Transparent, translucent and opaque objets.. Transparent objets, like clearglass bottles, allow light to passthrough .. Translucent objets, allow somelight to pass through like,curtains • Translucent. Opaque objets, for examplewood and cardboard do not allowlight to pass trhough. • Opaque
2.Luminous and non luminous bodies.• Natural luminous bodies like the , produce light.• Artificial luminous bodies, like & are man made.Non luminous bodies produce no light.
heat• 1. heat goes from one body to another. Heat goes from one body to another. Heat goes from hot bodies to colder bodies.• 2. conductors and insulator. Materials like iron , aluminium and glass are conductors. They get hot quickly.• Materials like wood and plastic are insulators. They get hot slowly.
test• Light moves in a straight line.• light moves very slow.• the shadow of an objet is always formed on the opposite side to the source of light.• White light is a mixture of four colours• when we mix red and yellow ge get orange• transparent objets do not allow light• Materials like iron aluminium and glass are insulators. They get hot quickly.
solutions• 1 . Yes , CONGRATULATIONS• 2 . No , fast• 3 . Yes , CONGRATULATIONS• 4 . No , seven• 5 . Yes , CONGRATULATIONS• 6 . No , allow light• 7 . No , conductors