light, shadow and reflextion

if an opaque object blocks the light to pass through you can see _______

• shadow

• reflection

• images

• refraction

A dark material made by an opaque object that lies between incoming light and a surfaces.

• light

• a black substance

• a shadow

• none of the above

which of the following best discribes translucent

• you can't see anything

• you can see everything clearly

• you can only see a bit but not clearly

• none of the above

word problem:

Sana wants to make a beautiful image using shadows. see picks up some object. but see could see the shadow of what's behind it.What could it be?

• an opaque object

• a transparent object

• a translucent object

• we can not say based on this much information

every object or every material has its own shadow

• true

• false

what was the ancient clock called as?

• gnomon

• the shadow clock

• the shadow clock

• Sundials

which one of these are natural source of light

• 
• 
• 
• 

a sunflower is luminous or non-luminous?

• non-luminous

• luminous

• nither

• both