Color
When a ray of light approaches a smooth polished surface and the light ray ______________ back to our eyes.
"Bounces"
A material that lets light pass through it so that objects can be seen clearly on the other side.
Transparent
True or False: A shadow is longest in the morning and evening.
True
What does a light emitter do?
Creates light.
Refraction is the _______________ of light as it passes from one transparent medium into another.
"Bending"
A material that allows some light to pass through it but scatters the light in the process so that images are not clear.
Translucent
What happens to an object's shadow when the object gets closer to a light source?
It gets bigger.
Why should you never look directly at the sun?
It can blind you.
What colours are in white light?
Red, Orange, Yellow, Green, Blue, Indigo, Violet
Light paths can be changed using reflective objects. True or False?
True
A material that does not let light pass through.
Opaque
If a shadow is long and pointing West, what time of day is it?
Morning
Give three examples of a natural light source.
Jellyfish, sun, angler fish, fireflies, fire, lightning
What do we have in our eyes to see colour?
Cones - red, blue, green
What does a concave mirror do?
It caves in and makes objects look smaller.
Give two examples of Transparent objects
Window, eyeglasses, drinking glass etc.
If a shadow is short, what is the position of the Sun?
The sun is above the object.
Moon, supervisor vests, mirror, still water etc.
True or False: A leaf appears green because it absorbs all green light.
False
What does a convex mirror do?
It curves outward and makes objects look bigger.
Give three examples of Translucent objects.
Stained glass, frosted glass, sunglasses, tissue paper etc.
What types of objects make the best shadows?
Opaque objects.
How does light travel?
It travels in a straight line until blocked by an opaque object.