Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 770 · 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.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
2. 2.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) louder (c) longer (d) blocky (pixelated)
3. 3.🟦 Which aspect ratio best fits a widescreen slide? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
4. 4.🟦 A photo is 3000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
5. 5.🟦 You shrink a 100 × 40 pixel image to half its width and half its height. How many pixels does it have now?
6. 6.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
7. 7.🟦 A 16:9 video frame is 1280 pixels wide. How many pixels tall is it?
8. 8.🟦 An image is 120 pixels wide and 120 pixels tall. How many pixels does it have in all?
9. 9.🟦 An image is 100 pixels wide and 200 pixels tall. How many pixels does it have in all?
10. 10.🟦 You shrink a 620 × 780 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 An image is 380 pixels wide and 310 pixels tall. How many pixels does it have in all?
12. 12.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
13. 13.🟦 A 16:9 video frame is 990 pixels tall. How many pixels wide is it?
14. 14.🟦 A 16:9 frame is … (a) taller than wide (b) wider than it is tall (c) a perfect square (d) round
15. 15.🟦 A 16:9 video frame is 180 pixels tall. How many pixels wide is it?
16. 16.🟦 Which aspect ratio best fits an older TV screen? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
17. 17.🟦 A 16:9 video frame is 1170 pixels tall. How many pixels wide is it?
18. 18.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
19. 19.🟦 A 4:3 video frame is 160 pixels wide. How many pixels tall is it?
20. 20.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
21. 21.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a type of paper (d) a sound
22. 22.🟦 An image is 340 pixels wide and 370 pixels tall. How many pixels does it have in all?
23. 23.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
24. 24.🟦 A 16:9 video frame is 2400 pixels wide. How many pixels tall is it?
25. 25.Which of these best fits 1:1? (a) an album cover (b) a phone story clip (c) a laptop film screen (d) a widescreen TV
26. 26.🟦 Which aspect ratio best fits an upright phone screen? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
27. 27.🟦 A 4:3 video frame is 240 pixels tall. How many pixels wide is it?
28. 28.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
29. 29.🟦 Which aspect ratio best fits an old-style monitor? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
30. 30.🟦 You shrink a 160 × 380 pixel image to half its width and half its height. How many pixels does it have now?
31. 31.🟦 A 16:9 video frame is 2240 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.🟦 A photo is 1000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
34. 34.🟦 A photo is 2000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
35. 35.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
36. 36.🟦 An image is 220 pixels wide and 80 pixels tall. How many pixels does it have in all?
37. 37.🟦 An image is 1440 × 810 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
38. 38.Which of these best fits 16:9? (a) a landscape video (b) a square sticker (c) a classic tablet screen (d) an older TV screen
39. 39.🟦 You shrink a 60 × 800 pixel image to half its width and half its height. How many pixels does it have now?
40. 40.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?

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