Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 641 · 40 questions

Creator's tip (Width times height): Pixels = width × height; megapixels = pixels ÷ 1000000. Aspect ratio = width : height. 16:9 wide, 4:3 squarer, 1:1 square, 9:16 tall. Keep the ratio: a 16:9 frame 1920 pixels wide is 1920 ÷ 16 × 9 = 1080 tall. Printing: inches × pixels per inch.

1. 1.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
2. 2.🟦 An image is 380 pixels wide and 120 pixels tall. How many pixels does it have in all?
3. 3.🟦 A photo is 4000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
4. 4.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) sharper (c) longer (d) blocky (pixelated)
5. 5.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
6. 6.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
7. 7.🟦 You shrink a 600 × 180 pixel image to half its width and half its height. How many pixels does it have now?
8. 8.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
9. 9.🟦 You shrink a 280 × 160 pixel image to half its width and half its height. How many pixels does it have now?
10. 10.🟦 An image is 110 pixels wide and 340 pixels tall. How many pixels does it have in all?
11. 11.Which of these best fits 16:9? (a) a square sticker (b) a square post (c) an older TV screen (d) a widescreen slide
12. 12.Which of these best fits 16:9? (a) a widescreen TV (b) a square sticker (c) a square post (d) a square profile picture
13. 13.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
14. 14.🟦 The resolution of an image is … (a) the number of pixels (b) the paper colour (c) the file name (d) the font
15. 15.🟦 A 4:3 video frame is 440 pixels wide. How many pixels tall is it?
16. 16.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
17. 17.🟦 A 16:9 video frame is 800 pixels wide. How many pixels tall is it?
18. 18.🟦 You shrink a 40 × 440 pixel image to half its width and half its height. How many pixels does it have now?
19. 19.🟦 Which aspect ratio best fits an old-style monitor? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
20. 20.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) more colourful (c) exactly the same (d) sharper
21. 21.Which of these best fits 1:1? (a) a widescreen TV (b) a laptop film screen (c) a tall phone video (d) a square profile picture
22. 22.🟦 You shrink an 80 × 380 pixel image to half its width and half its height. How many pixels does it have now?
23. 23.🟦 What is a pixel? (a) a sound (b) a type of paper (c) a font size (d) a tiny dot of colour
24. 24.🟦 A 16:9 video frame is 2880 pixels wide. How many pixels tall is it?
25. 25.🟦 A photo is 1000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
26. 26.🟦 A 4:3 video frame is 120 pixels wide. How many pixels tall is it?
27. 27.🟦 An image is 170 pixels wide and 30 pixels tall. How many pixels does it have in all?
28. 28.🟦 An image is 360 × 270 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
29. 29.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
30. 30.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
31. 31.Which of these best fits 16:9? (a) an older TV screen (b) an old-style monitor (c) a square sticker (d) a landscape video
32. 32.🟦 An image is 240 × 160 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
33. 33.🟦 Which aspect ratio best fits an upright phone screen? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
34. 34.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
35. 35.Which of these best fits 1:1? (a) a widescreen TV (b) a square sticker (c) an older TV screen (d) a tall phone video
36. 36.🟦 You shrink a 240 × 300 pixel image to half its width and half its height. How many pixels does it have now?
37. 37.🟦 You shrink a 160 × 500 pixel image to half its width and half its height. How many pixels does it have now?
38. 38.🟦 An image is 720 × 480 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
39. 39.🟦 An image is 250 pixels wide and 20 pixels tall. How many pixels does it have in all?
40. 40.🟦 A photo is 5000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =

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