Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 508 · 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 420 × 280 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
2. 2.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
3. 3.🟦 You shrink a 240 × 460 pixel image to half its width and half its height. How many pixels does it have now?
4. 4.🟦 A 16:9 video frame is 2240 pixels wide. How many pixels tall is it?
5. 5.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
6. 6.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
7. 7.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
8. 8.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
9. 9.🟦 You shrink a 760 × 560 pixel image to half its width and half its height. How many pixels does it have now?
10. 10.Which of these best fits 9:16? (a) a tall phone video (b) an album cover (c) a square sticker (d) an older TV screen
11. 11.Which of these best fits 16:9? (a) a classic tablet screen (b) a tall phone video (c) a landscape video (d) an upright phone screen
12. 12.🟦 An image is 160 × 120 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
13. 13.Which of these best fits 16:9? (a) a widescreen slide (b) an upright phone screen (c) an album cover (d) a square post
14. 14.🟦 You shrink a 580 × 160 pixel image to half its width and half its height. How many pixels does it have now?
15. 15.🟦 A 16:9 frame is … (a) round (b) wider than it is tall (c) a perfect square (d) taller than wide
16. 16.🟦 A 4:3 video frame is 330 pixels tall. How many pixels wide is it?
17. 17.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) exactly the same (c) squashed or wide (d) sharper
18. 18.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) sharper (c) louder (d) blocky (pixelated)
19. 19.Which of these best fits 1:1? (a) a widescreen TV (b) a phone story clip (c) a widescreen slide (d) a square post
20. 20.🟦 A 4:3 video frame is 240 pixels wide. How many pixels tall is it?
21. 21.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
22. 22.🟦 You shrink a 360 × 40 pixel image to half its width and half its height. How many pixels does it have now?
23. 23.🟦 An image is 120 × 90 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
24. 24.🟦 You shrink a 440 × 400 pixel image to half its width and half its height. How many pixels does it have now?
25. 25.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
26. 26.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
27. 27.Which of these best fits 4:3? (a) a square sticker (b) a laptop film screen (c) a widescreen slide (d) an older TV screen
28. 28.🟦 Which aspect ratio best fits an album cover? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
29. 29.🟦 An image is 290 pixels wide and 400 pixels tall. How many pixels does it have in all?
30. 30.🟦 A 4:3 video frame is 240 pixels tall. How many pixels wide is it?
31. 31.🟦 An image is 360 pixels wide and 210 pixels tall. How many pixels does it have in all?
32. 32.🟦 What is a pixel? (a) a type of paper (b) a font size (c) a sound (d) a tiny dot of colour
33. 33.🟦 An image is 80 pixels wide and 20 pixels tall. How many pixels does it have in all?
34. 34.🟦 An image is 1920 × 1080 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
35. 35.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
36. 36.🟦 A photo is 1000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
37. 37.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
38. 38.🟦 A photo is 6000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
39. 39.🟦 An image is 70 pixels wide and 140 pixels tall. How many pixels does it have in all?
40. 40.🟦 An image is 230 pixels wide and 140 pixels tall. How many pixels does it have in all?

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