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What the difference between natural light and artificial light?
Natural light is produced by the sun or nature. Aritificial light is produced by humans.
Most things do not ***** their own light; we seem the becaue they ***** light. Things that **** light are our light sources.
Emit / Reflect / Emit
Light always travels in **** lines. It change ***** when light meets something. We can see the object because the light is ***** into our eyes.
straight / direction/ reflected
What are the reflection and refraction?
Reflection is when light bounces off an object instead of being soaked up. Refraction is when light bends/ changes its angles when it passe.
Sunlight appears no colours, **** but it made of rainbow colours. Name 7 colours. When light meets a ****, it changes ****. This is called **** and becomes rainbow.
white, ROYGBIV, raindrop/ direction/ refraction
When sunlight shines on a white surface, we see ****because the surface **** all the colours. The light shines on a black or yellow surface. What happesn
white/reflects black surface/ we see black because all colours are absorbed. yellow/ all other colours excep yellow are absorbed.
What are transparent/ translucent / opaque?
Transparent; light passes through easily translucent: some light pass through Opaque: no ligh to pass through
curtain/ window/ change room Are they transparent/ translucent / opaque? Why?
curtain- translucent(need light and privacy) Window - transparent (need light) Change room - opaque (privacy)
Light travel in **** line. When light can't pass through an object, the ****** object casts a *****. S****, L*****, p*** of a shows depend on where the light is coming from.
straight / opaque/ shadow / size / length / position
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