Vocabuary
Light & The Eye
Color
More Color
The Spectrum of Color
100

What does the word emit mean?

What is to release?

100
Which describes the correct path that light takes in order for to be able to see a tree? absorbed by the brain. A) The light is reflected from the tree. The reflected light travels to the eye, going through the lens to nerves that go to the brain. B) Light travels to the eye, then the light is reflected onto the tree. Next, the reflected light travels back to the eye and then to the brain.
What is A?
100
What happens when white light strikes a black object? A) Blue light is reflected. B) Red light is reflected. C) No light is reflected. D) All of the light is reflected.
What is C) no light is reflected?
100
Why does a stop sign appear red? A) It absorbs red light. B) It reflects red light. C) It refracts red light. D) It reflects all colors except red
What is B) if reflects red light?
100
Which statement most accurately describes the relationship between frequency, wavelength, and energy on the electromagnetic spectrum? A) The higher the frequency, the longer the wavelength and the higher the energy. B) The longer the wavelength, the lower the frequency and the lower in energy.
What is B) longer wavelength means a lower frequency.
200

What does the word absorb mean?

What is to take in?

200
Where within the eye does the lens focus the light waves? A) the back of the eye (retina) B) the cornea & the lens
What is retina?
200
How would a red apple look under blue light? A) The apple would appear black. B) The apple would appear white. C) The apple would still appear red. D) The apple would seem to disappear.
What is A) the apple would appear black?
200

When sunlight shines on a leaf, the leaf looks green. Why does the leaf look green? B)It absorbs only the green part of the light. C)It reflects the green light waves and absorbs most of the rest.

What is C)it reflects green light waves and absorbs most of the rest?

200
Which of the following statements about the electromagnetic spectrum is accurate? C) Infrared and ultraviolet radiations have wavelengths that are the same length. D) Only a small portion of the electromagnetic spectrum is visible to humans.
What is D) only a small portion of the electromagnetic spectrum is visible to humans.
300

What does the word reflect mean?

What is to bounce off?

300
Light waves enter the eye and pass through which two transparent parts? A) Optic nerve and eyeball B) Cornea and retina C) Pupil and iris D) Cornea and lens
What is D) cornea & lens?
300
Which behavior of light must happen if the color of an opaque object is going to be seen? A) refraction B) absorption C) transmission D) reflection
What is D) reflection?
300
All of the following behaviors will cause colors to be perceived by the human eye EXCEPT: A) absorption by various materials B) refraction through a prism
What is A) absorption by various materials?
300

1. Most objects can be seen because they _____. A)bend light waves B)reflect light waves C)absorb light waves D)transmit light waves

What is B) reflect light waves

400

What does it mean to transmit?

What does pass through mean?

400
As light waves enter the eye, which sequence shows the path light travels to allow sight to occur? A) Cornea, lens, retina, optic nerve B) Lens, cornea, optic nerve, retina C) Cornea, retina, lens, optic nerve D) Optic nerve, retina, cornea, lens
What is B) lens, cornea, optic nerve retina?
400
If a material absorbs all the light waves that reach it, which color will the human eye see? A) white B) black C) red D) violet
What is B) black?
400
A projector when turned on transmits red light. When a red filter is placed in front of the red beam of light, red light passes through. When a sheet of blue filter or green filter is placed in front of the projector’s red beam of light, no light passes through either of those filters. Which of the following is supported by these observations? B) Green light is not absorbed by a red filter. C) Red light is not transmitted through a blue filter.
What is C) red light is not transmitted through a blue filter?
400
The frequency of violet light is _____ that of yellow light. A) higher than B) lower than C) the same as D) faster than
What is A) higher than?
500

TWO PART QUESTION: What is the amplitude of the wave? What is the wavelength of a wave?

What is the height of a wave? What is the distance from one peak to another?

500
Why must light be refracted by the lens of the eye? B) So that the image can be formed in the center of the eye C) So that the image focuses at the back of the eye D) So that the iris can close the pupil if there is too much light
What is C, so that the image focuses at the back of the eye?
500
What happens when all the light waves of the visible spectrum are reflected together? A) You see white. B) You see black. C) You see a rainbow of colors. D) You see no colors at all.
What is A) you see white?
500
A piece of cloth appears red through a red filter, green through a green filter, and blue through a blue filter. What color is the cloth? A) Red B) Green C) Blue D) White
What is D) white?
500
. _____ energy is transmitted by infrared radiation. A) Electrical B) Heat C) Magnetic D) Sound
What is B) heat?
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