The bending of light as it passes from one medium to another is called _______ .
Question 18
18.
On the diagram above draw a ray of light to show how George sees the light from the lamp reflected by the laptop screen.Draw arrows to show the direction of light.
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Question 19
19.
Explain why this ball appeared red.
What is the definition of light?
A form of sound energy
A form of heat energy
A form of energy that travels in waves
A type of solid material
What type of material allows all light to pass through?
Opaque
Translucent
Transparent
Reflective
What happens when light hits a smooth, shiny surface?
It refracts
It reflects
It scatters
It absorbs
Which part of the eye controls the amount of light entering it?
Retina
Lens
Iris
Cornea
What causes a rainbow to form?
Reflection of light by a mirror
Dispersion of white light by raindrops
Absorption of light by clouds
Scattering of blue light
What is the primary function of rods in the retina?
Detecting color
Detecting light intensity
Focusing light
Absorbing light
What is refraction?
The bending of light as it passes from one medium to another
The scattering of light in all directions
The reflection of light off a smooth surface
The absorption of light by an object
Which color of light has the shortest wavelength?
Red
Green
Yellow
Violet
What happens to light when it passes through a convex lens?
It spreads out
It bends inward to converge
It scatters in all directions
It reflects back
What part of the camera is similar to the retina in the eye?
Shutter
Lens
Film or digital sensor
Aperture
What type of material allows some light to pass through but scatters it?
Transparent
Opaque
Translucent
Reflective
What color is produced when red and blue light are combined?
Yellow
Cyan
Magenta
White
Which of the following is NOT a property of light?
It travels in straight lines
It needs a medium to travel through
It can be reflected
It can be refracted
Why does a green object appear green in white light?
It absorbs green light
It reflects green light
It scatters green light
It emits green light
What is dispersion?
The bending of light in a lens
The separation of white light into its spectrum of colors
