Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 90 · 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.🟦 An image is 100 pixels wide and 250 pixels tall. How many pixels does it have in all?
2. 2.Which of these best fits 1:1? (a) an older TV screen (b) a tall phone video (c) a phone story clip (d) a square post
3. 3.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
4. 4.🟦 A photo is 4000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
5. 5.🟦 An image is 180 × 180 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
6. 6.🟦 A 4:3 video frame is 120 pixels tall. How many pixels wide is it?
7. 7.🟦 An image is 310 pixels wide and 250 pixels tall. How many pixels does it have in all?
8. 8.🟦 You shrink a 680 × 780 pixel image to half its width and half its height. How many pixels does it have now?
9. 9.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
10. 10.🟦 A 16:9 video frame is 180 pixels tall. How many pixels wide is it?
11. 11.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
12. 12.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
13. 13.🟦 You shrink a 480 × 720 pixel image to half its width and half its height. How many pixels does it have now?
14. 14.🟦 An image is 510 × 340 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
15. 15.🟦 Which aspect ratio best fits a phone story clip? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
16. 16.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) exactly the same (c) more colourful (d) sharper
17. 17.🟦 An image is 380 pixels wide and 150 pixels tall. How many pixels does it have in all?
18. 18.🟦 An image is 30 pixels wide and 260 pixels tall. How many pixels does it have in all?
19. 19.🟦 A 16:9 frame is … (a) taller than wide (b) a perfect square (c) wider than it is tall (d) round
20. 20.🟦 Which aspect ratio best fits an old-style monitor? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
21. 21.🟦 You shrink a 600 × 600 pixel image to half its width and half its height. How many pixels does it have now?
22. 22.🟦 An image is 280 × 210 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
23. 23.🟦 An image is 30 × 20 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
24. 24.🟦 An image is 360 × 270 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
25. 25.Which of these best fits 1:1? (a) a landscape video (b) a phone story clip (c) a widescreen slide (d) a square sticker
26. 26.Which of these best fits 16:9? (a) an upright phone screen (b) a square profile picture (c) a widescreen slide (d) a classic tablet screen
27. 27.🟦 An image is 280 pixels wide and 20 pixels tall. How many pixels does it have in all?
28. 28.🟦 Which aspect ratio best fits a widescreen slide? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
29. 29.🟦 An image is 400 × 300 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
30. 30.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) longer (c) blocky (pixelated) (d) sharper
31. 31.🟦 You shrink a 280 × 380 pixel image to half its width and half its height. How many pixels does it have now?
32. 32.🟦 You shrink a 520 × 480 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 An image is 210 × 210 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
34. 34.🟦 A 16:9 video frame is 990 pixels tall. How many pixels wide is it?
35. 35.🟦 Which aspect ratio best fits a square post? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
36. 36.🟦 An image is 230 × 230 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
37. 37.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
38. 38.🟦 A photo is 3000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
39. 39.Which of these best fits 1:1? (a) a landscape video (b) a widescreen TV (c) a phone story clip (d) an album cover
40. 40.🟦 An image is 370 pixels wide and 320 pixels tall. How many pixels does it have in all?

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