Podcast
Questions and Answers
A shirt appears magenta in sunlight. If you shine green light on the shirt in a dark room, what color would the shirt appear to be?
A shirt appears magenta in sunlight. If you shine green light on the shirt in a dark room, what color would the shirt appear to be?
- Magenta
- Black (correct)
- Blue
- Red
A spotlight emits white light. If a cyan filter is placed in front of the spotlight, what colors of light will pass through the filter?
A spotlight emits white light. If a cyan filter is placed in front of the spotlight, what colors of light will pass through the filter?
- Red only
- Green and Blue (correct)
- Blue only
- Red and Green
A painter mixes red and green paint. If they then shine blue light on their new paint mixture, what color will the mixture appear to be?
A painter mixes red and green paint. If they then shine blue light on their new paint mixture, what color will the mixture appear to be?
- Magenta
- Yellow
- White
- Black (correct)
Which combination of colored lights would create white light?
Which combination of colored lights would create white light?
A scientist is conducting an experiment using colored filters. They shine white light through a red filter, and then shine the resulting light through a green filter. What will the scientist observe after the light passes through both filters?
A scientist is conducting an experiment using colored filters. They shine white light through a red filter, and then shine the resulting light through a green filter. What will the scientist observe after the light passes through both filters?
Flashcards
Primary Colors of Light
Primary Colors of Light
Red, Green, and Blue. Mixing them creates other colors.
What colors make Yellow?
What colors make Yellow?
Red + Green
Why Objects Have Color
Why Objects Have Color
An object reflects the color we see and absorbs the rest.
What a Colored Filter Does
What a Colored Filter Does
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Red Object Under Blue Light
Red Object Under Blue Light
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Study Notes
- Light comprises the primary colors red, green, and blue.
- Different color combinations result in new colors.
- Red and green light combine to produce yellow light.
- Red and blue light combine to produce magenta light.
- Green and blue light combine to produce cyan light.
- Red, green, and blue light combine to produce white light, which contains all colors.
- An object's color is determined by the colors of light it reflects and absorbs.
- A red snooker ball appears red because it reflects red light and absorbs all other colors.
- A green ball appears green because it reflects only green light.
- A black ball absorbs all colors and reflects none, therefore it appears black.
- A magenta ball reflects red and blue light and absorbs other colors, hence it appears magenta.
- A filter blocks certain colors of light while allowing others to pass through.
- A green filter allows only green light to pass through, absorbing all other colors.
- If green light hits a red filter, no light passes through because red absorbs green.
- Objects may appear differently under various colors of light as the reflected colors change.
- A red object would appear black under blue light because it can only reflect red light.
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