Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 869 · 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.🟦 You shrink a 660 × 760 pixel image to half its width and half its height. How many pixels does it have now?
2. 2.🟦 An image is 170 pixels wide and 400 pixels tall. How many pixels does it have in all?
3. 3.🟦 A photo is 1000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
4. 4.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
5. 5.🟦 Which aspect ratio best fits an upright phone screen? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
6. 6.🟦 An image is 360 pixels wide and 170 pixels tall. How many pixels does it have in all?
7. 7.🟦 You shrink a 180 × 740 pixel image to half its width and half its height. How many pixels does it have now?
8. 8.🟦 Which aspect ratio best fits a square profile picture? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
9. 9.Which of these best fits 16:9? (a) a tall phone video (b) an upright phone screen (c) a widescreen TV (d) a square post
10. 10.🟦 A 16:9 frame is … (a) a perfect square (b) round (c) wider than it is tall (d) taller than wide
11. 11.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
12. 12.🟦 You shrink a 340 × 60 pixel image to half its width and half its height. How many pixels does it have now?
13. 13.🟦 A 16:9 video frame is 1920 pixels wide. How many pixels tall is it?
14. 14.🟦 You shrink a 640 × 700 pixel image to half its width and half its height. How many pixels does it have now?
15. 15.🟦 You shrink a 140 × 380 pixel image to half its width and half its height. How many pixels does it have now?
16. 16.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
17. 17.Which of these best fits 1:1? (a) a laptop film screen (b) a phone story clip (c) an album cover (d) a widescreen TV
18. 18.🟦 A 4:3 video frame is 90 pixels tall. How many pixels wide is it?
19. 19.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) squashed or wide (c) more colourful (d) sharper
20. 20.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
21. 21.Which of these best fits 9:16? (a) an older TV screen (b) a tall phone video (c) a classic tablet screen (d) a widescreen TV
22. 22.🟦 Which aspect ratio best fits a phone story clip? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
23. 23.🟦 Which aspect ratio best fits a widescreen slide? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
24. 24.🟦 The resolution of an image is … (a) the paper colour (b) the font (c) the file name (d) the number of pixels
25. 25.🟦 You shrink a 520 × 40 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.Which of these best fits 4:3? (a) an old-style monitor (b) a widescreen TV (c) a square profile picture (d) an album cover
27. 27.🟦 A photo is 2000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
28. 28.Which of these best fits 16:9? (a) a square profile picture (b) an older TV screen (c) a landscape video (d) an upright phone screen
29. 29.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
30. 30.🟦 A 4:3 video frame is 560 pixels wide. How many pixels tall is it?
31. 31.Which of these best fits 1:1? (a) a tall phone video (b) an old-style monitor (c) a widescreen slide (d) a square post
32. 32.🟦 An image is 20 pixels wide and 80 pixels tall. How many pixels does it have in all?
33. 33.🟦 A 4:3 video frame is 440 pixels wide. How many pixels tall is it?
34. 34.🟦 A 4:3 video frame is 920 pixels wide. How many pixels tall is it?
35. 35.🟦 A 4:3 video frame is 390 pixels tall. How many pixels wide is it?
36. 36.Which of these best fits 9:16? (a) a widescreen TV (b) an album cover (c) a square sticker (d) a phone story clip
37. 37.Which of these best fits 4:3? (a) a widescreen slide (b) a square profile picture (c) a phone story clip (d) an older TV screen
38. 38.🟦 An image is 220 pixels wide and 360 pixels tall. How many pixels does it have in all?
39. 39.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) louder (c) sharper (d) blocky (pixelated)
40. 40.🟦 Which aspect ratio best fits a square post? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16

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