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When would you use opaque objects?

When you want to keep light out. Ex: Curtains to keep out light when you sleep.


Why is your shadow sometimes in front of you and sometimes behind you?

Your shadow will fall in the direction opposite the source of light - with you between the light source and the shadow. The direction of your shadow relative to you will depend on what direction you are facing.If you are facing toward the light source, the shadow will be behind you.If you are facing away from the light source, it will be in front of you.If you have the light source to your right, the shadow will be to your left.If you have the light source to your left, the shadow will be to your right.If the light source is directly above you, the shadow will be directly under you.If you move past a light source, your shadow will move from behind you to beside you and then to in front of you.


When the switch is closed it means that?

There is a complete path for the electricity to flow. The opposite of an open circuit. If a light switch is on and the light comes on, the circuit is closed. If the switch is turned off, the light goes off because the circuit is open.


What is photosentic?

quite a strange question. looking at the word we can gather that photo means light and sentic means the study of waveforms of touch so therefore i believe it would mean it is light sensitive if indeed it was photosentic if not i can only guess that the opposite would apply and if it was not photosentic it would not be light sensitive hope this helps


Opaque is to transparent as turmoil is to?

Opaque is to transparent as turmoil is to order. (Or composure, peacefulness, etc.) -This is because the opposite of opaque is transparent, as opaque allows no light through while transparent allows all light through; and the opposite of turmoil is-.