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Before you start - Light and sound
EduBook Organización
- 2098 visitas
Didactic objectives Identify light as a type of energy. Describe how light is produced. Understand the difference between transparent, translucent and opaque objects. Distinguish between the reflection…
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True / False. Lenses
EduBook Organización
- 1652 visitas
Are these sentences true or false? Lenses are pieces of glass or plastic in the form of a disc. They reflect light. Lenses are pieces of glass or plastic in the form of a disc. They use refraction to…