Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 670 · 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 90 × 90 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
2. 2.Which of these best fits 16:9? (a) a landscape video (b) a tall phone video (c) a phone story clip (d) an old-style monitor
3. 3.🟦 A photo is 5000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
4. 4.Which of these best fits 4:3? (a) a phone story clip (b) a square sticker (c) a classic tablet screen (d) an upright phone screen
5. 5.🟦 An image is 80 × 60 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 1:1 (d) 16:9
6. 6.🟦 You shrink a 740 × 360 pixel image to half its width and half its height. How many pixels does it have now?
7. 7.🟦 An image is 190 × 190 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
8. 8.Which of these best fits 1:1? (a) an old-style monitor (b) a tall phone video (c) a square profile picture (d) a phone story clip
9. 9.🟦 An image is 3520 × 1980 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
10. 10.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
11. 11.🟦 You shrink a 480 × 240 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
13. 13.Which of these best fits 4:3? (a) a landscape video (b) a widescreen slide (c) a laptop film screen (d) an old-style monitor
14. 14.🟦 An image is 320 × 180 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
15. 15.🟦 An image is 420 × 280 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 4:3 (d) 3:2
16. 16.🟦 A 4:3 video frame is 360 pixels wide. How many pixels tall is it?
17. 17.🟦 A 16:9 video frame is 630 pixels tall. How many pixels wide is it?
18. 18.🟦 A 4:3 video frame is 390 pixels tall. How many pixels wide is it?
19. 19.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
20. 20.🟦 An image is 180 pixels wide and 340 pixels tall. How many pixels does it have in all?
21. 21.🟦 An image is 30 pixels wide and 140 pixels tall. How many pixels does it have in all?
22. 22.🟦 Which aspect ratio best fits an album cover? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
23. 23.🟦 What is a pixel? (a) a type of paper (b) a font size (c) a sound (d) a tiny dot of colour
24. 24.🟦 Which aspect ratio best fits a phone story clip? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
25. 25.🟦 Which aspect ratio best fits a square post? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
26. 26.Which of these best fits 9:16? (a) a laptop film screen (b) an old-style monitor (c) a widescreen TV (d) an upright phone screen
27. 27.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) sharper (c) squashed or wide (d) exactly the same
28. 28.🟦 An image is 90 pixels wide and 170 pixels tall. How many pixels does it have in all?
29. 29.🟦 An image is 120 pixels wide and 210 pixels tall. How many pixels does it have in all?
30. 30.🟦 A photo is 4000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
31. 31.🟦 A 16:9 video frame is 480 pixels wide. How many pixels tall is it?
32. 32.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
33. 33.Which of these best fits 9:16? (a) a widescreen TV (b) a phone story clip (c) a laptop film screen (d) an older TV screen
34. 34.Which of these best fits 16:9? (a) a phone story clip (b) a tall phone video (c) a widescreen TV (d) a square sticker
35. 35.🟦 An image is 350 pixels wide and 370 pixels tall. How many pixels does it have in all?
36. 36.🟦 A 16:9 video frame is 2080 pixels wide. How many pixels tall is it?
37. 37.🟦 A 16:9 video frame is 3200 pixels wide. How many pixels tall is it?
38. 38.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) longer (c) louder (d) sharper
39. 39.🟦 A photo is 4000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
40. 40.🟦 Which aspect ratio best fits a widescreen slide? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1

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