What are reflective or illuminated objects?
They are objects that only reflect light from another source, like the moon.
When an object is closer to the light source, its shadow will be…
bigger
What surfaces reflect light well?
The surfaces that reflect light best are those that are smooth, shiny, and typically a very light color, such as a mirror or polished metal.
What is specular reflection?
Specular reflection is when light rays bounce off a surface in a very neat, mirror-like way.
Is the picture an example of SPECULAR or DIFFUSE REFLECTION?
DIFFUSE
Classify the objects
..
A shadow is always the same size as the object. False True
FALSE
Find 2 opaque objects around you.
pencil box, binder, book, chairs
What are Luminous objects?
are things that create and emit their own light, such as the sun, stars, fireflies, a lightbulb, a torch, or a candle flame.
_________ objects allow ALL the light to travel through them
TRANSPARENT
_________ objects allow SOME light to travel through them
TRANSLUCENT
How can we see?
Light lets us see because it bounces off objects, like a ball hitting a wall, and travels into our eyes
what are examples of light sources?
the sun, a screen, a flashlight
How are shadows formed?
A shadow is formed when an object blocks light from passing through it
What THREE elements are needed for shadows to form?
A surface, a source of light and an object