Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 273 · 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 3360 × 1890 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 1:1 (d) 16:9
2. 2.🟦 An image is 340 pixels wide and 130 pixels tall. How many pixels does it have in all?
3. 3.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
4. 4.🟦 Which aspect ratio best fits an older TV screen? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
5. 5.🟦 Which aspect ratio best fits an old-style monitor? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
6. 6.🟦 An image is 90 × 90 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
7. 7.🟦 An image is 370 pixels wide and 50 pixels tall. How many pixels does it have in all?
8. 8.🟦 You shrink a 560 × 720 pixel image to half its width and half its height. How many pixels does it have now?
9. 9.🟦 An image is 120 pixels wide and 330 pixels tall. How many pixels does it have in all?
10. 10.🟦 What is a pixel? (a) a sound (b) a font size (c) a type of paper (d) a tiny dot of colour
11. 11.🟦 A photo is 4000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
12. 12.🟦 An image is 110 pixels wide and 90 pixels tall. How many pixels does it have in all?
13. 13.Which of these best fits 1:1? (a) a tall phone video (b) a phone story clip (c) an album cover (d) an older TV screen
14. 14.🟦 An image is 30 pixels wide and 250 pixels tall. How many pixels does it have in all?
15. 15.🟦 An image is 360 × 240 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
16. 16.🟦 You shrink a 220 × 640 pixel image to half its width and half its height. How many pixels does it have now?
17. 17.Which of these best fits 1:1? (a) a landscape video (b) a classic tablet screen (c) a tall phone video (d) a square post
18. 18.🟦 Which aspect ratio best fits a widescreen TV? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
19. 19.Which of these best fits 16:9? (a) a classic tablet screen (b) a tall phone video (c) an album cover (d) a widescreen slide
20. 20.🟦 An image is 30 × 20 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
21. 21.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
22. 22.🟦 A 16:9 video frame is 1920 pixels wide. How many pixels tall is it?
23. 23.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
24. 24.🟦 Which aspect ratio best fits a tall phone video? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
25. 25.🟦 A 16:9 frame is … (a) round (b) taller than wide (c) wider than it is tall (d) a perfect square
26. 26.Which of these best fits 4:3? (a) an upright phone screen (b) a widescreen slide (c) a classic tablet screen (d) a phone story clip
27. 27.🟦 An image is 480 × 270 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
28. 28.Which of these best fits 16:9? (a) an older TV screen (b) a square profile picture (c) a tall phone video (d) a widescreen TV
29. 29.🟦 An image is 20 pixels wide and 360 pixels tall. How many pixels does it have in all?
30. 30.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) squashed or wide (c) more colourful (d) sharper
31. 31.🟦 An image is 50 pixels wide and 90 pixels tall. How many pixels does it have in all?
32. 32.🟦 An image is 30 pixels wide and 300 pixels tall. How many pixels does it have in all?
33. 33.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
34. 34.Which of these best fits 4:3? (a) an older TV screen (b) a landscape video (c) a phone story clip (d) a square post
35. 35.🟦 Which aspect ratio best fits a laptop film screen? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
36. 36.🟦 Which aspect ratio best fits an album cover? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
37. 37.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
38. 38.🟦 You shrink a 760 × 280 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.Which of these best fits 1:1? (a) a widescreen slide (b) an old-style monitor (c) a square profile picture (d) a tall phone video
40. 40.🟦 An image is 240 × 160 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3

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