The Picture Made of Tiny Dots
Written by Studio AM.
Your result
- Words per minute
- Score
- Pace
Words per minute mean something only with the score beside them. They describe this passage on this read. With fewer than 3 right, try the next slower pace.
Choose a pace and select Start. The passage is paced and timed, then the questions check what you understood. How pace mode works
Reading time 0:00
Many color screens build pictures from tiny parts called pixels. Each pixel combines smaller red, green, and blue elements. From nearby, the parts may look like colored dots.
Different brightness levels create many colors. Red and green light together can appear yellow. All three shining strongly can appear white. Dark pixels give off little light.
A screen places rows of pixels close together. From a normal viewing distance, the eye joins them into edges, letters, faces, and shadows. More pixels can show finer detail when the screen size and image support them.
A pixel follows numerical instructions telling each color how brightly to shine. Software changes many numbers rapidly to make video move. The complete picture emerges from a grid of small, coordinated lights.
The passage is hidden while you answer. It comes back with your result.
Questions
Choose an answer. The explanation appears after you answer.
-
Question 1 of 4
What is the main idea of the passage?
The answer is D: A screen coordinates pixels that combine red, green, and blue light at different brightness levels to form images.
The passage moves from one pixel’s colored light to the grid and software that produce an image.
-
Question 2 of 4
Why do the colored dots look like one picture from farther away?
The answer is A: The eye combines closely spaced pixels into larger shapes and details.
Normal viewing distance makes the tiny coordinated parts merge perceptually into edges and forms.
-
Question 3 of 4
What does “pixel” mean?
The answer is B: one tiny controllable picture element on a screen
The opening defines pixels as the tiny parts from which a screen picture is built.
-
Question 4 of 4
Which three light colors does the passage name?
The answer is C: red, green, and blue
The first paragraph lists red, green, and blue light in each pixel.
Score: none answered yet.