Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 185 · 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 80 pixels wide and 260 pixels tall. How many pixels does it have in all?
2. 2.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
3. 3.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
4. 4.🟦 You shrink a 400 × 360 pixel image to half its width and half its height. How many pixels does it have now?
5. 5.🟦 Which aspect ratio best fits a square sticker? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
6. 6.🟦 Which aspect ratio best fits a phone story clip? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
7. 7.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
8. 8.Which of these best fits 4:3? (a) a phone story clip (b) a classic tablet screen (c) a square sticker (d) an upright phone screen
9. 9.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
10. 10.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
11. 11.Which of these best fits 16:9? (a) an album cover (b) a laptop film screen (c) a phone story clip (d) a classic tablet screen
12. 12.Which of these best fits 4:3? (a) an older TV screen (b) a square post (c) a landscape video (d) a square profile picture
13. 13.🟦 You shrink a 620 × 660 pixel image to half its width and half its height. How many pixels does it have now?
14. 14.🟦 A 16:9 frame is … (a) wider than it is tall (b) round (c) taller than wide (d) a perfect square
15. 15.Which of these best fits 9:16? (a) a square sticker (b) a landscape video (c) a phone story clip (d) an older TV screen
16. 16.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
17. 17.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
18. 18.Which of these best fits 1:1? (a) a square post (b) an old-style monitor (c) a landscape video (d) a widescreen TV
19. 19.🟦 A 4:3 video frame is 120 pixels tall. How many pixels wide is it?
20. 20.🟦 You shrink a 460 × 500 pixel image to half its width and half its height. How many pixels does it have now?
21. 21.Which of these best fits 9:16? (a) a landscape video (b) a widescreen slide (c) a tall phone video (d) a classic tablet screen
22. 22.🟦 You shrink a 100 × 80 pixel image to half its width and half its height. How many pixels does it have now?
23. 23.🟦 An image is 260 pixels wide and 40 pixels tall. How many pixels does it have in all?
24. 24.🟦 An image is 300 pixels wide and 80 pixels tall. How many pixels does it have in all?
25. 25.🟦 You shrink a 160 × 640 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 Which aspect ratio best fits an album cover? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
27. 27.🟦 A 16:9 video frame is 540 pixels tall. How many pixels wide is it?
28. 28.🟦 What is a pixel? (a) a type of paper (b) a sound (c) a font size (d) a tiny dot of colour
29. 29.Which of these best fits 4:3? (a) an old-style monitor (b) a landscape video (c) a square post (d) a square profile picture
30. 30.🟦 An image is 3680 × 2070 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
31. 31.🟦 Which aspect ratio best fits a square profile picture? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
32. 32.🟦 A photo is 6000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
33. 33.🟦 A 4:3 video frame is 560 pixels wide. How many pixels tall is it?
34. 34.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
35. 35.Which of these best fits 9:16? (a) an upright phone screen (b) a widescreen slide (c) a square profile picture (d) an album cover
36. 36.🟦 You shrink a 240 × 80 pixel image to half its width and half its height. How many pixels does it have now?
37. 37.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
38. 38.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) more colourful (c) squashed or wide (d) exactly the same
39. 39.🟦 An image is 300 pixels wide and 370 pixels tall. How many pixels does it have in all?
40. 40.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?

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