light and a receptive eye.
motion.
you see with your pupil.
an unbalanced force
you see coloured objects by the light. light makes the color of the object
We see objects, because:* Light from the objects reaches us. * Our eyes (and brains) are especially equipped to detect such light.
We can see non-luminous objects because the light reflect off the object and into our eyes that's why at night you can only see a faint out line of the objects around you
People see objects - because light is reflected back to the person viewing.
Nearsighted people can see objects that are close more clearly than objects that are far away.
3
force of compression
No. Most objects you see need to be shined on by a source of light, otherwise you don't see them.
These objects are opaque.