Junior Cert Science - Physics - Light
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| Converts light energy to electrical energy & may be found in calculators | Solar cells |
| Converts light energy to heat ensrgy & may be found on roofs | Solar panels |
| Allows light through | Transparent |
| An object that gives out its own light | Luminous |
| An object that does not give out its own light | Non-luminous |
| Does not allow light through | Opaque |
| It occurs when the moon passes between the sun and the earth | Solar eclipse |
| The bouncing of light from a surface | Reflection |
| Found in submarines and can be used to see above the surface of the water | Periscope |
| The bending of light as it passes from one transparent medium to another | Refraction |
| A piece of glass that has at least one curved surface | Lens |
| The seven colours of the rainbow/spectrum | Red, orange, yellow, green, blue, indigo and violet |
| The breaking up of white light into its constituent colours | Dispersion |
| Refraction of light on a hot sunny day | Mirage |
| Our main source of light and energy | Sun |