Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 32 · 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.🟦 A 4:3 video frame is 600 pixels tall. How many pixels wide is it?
2. 2.🟦 An image is 570 × 380 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
3. 3.🟦 The resolution of an image is … (a) the font (b) the number of pixels (c) the paper colour (d) the file name
4. 4.🟦 A 16:9 frame is … (a) wider than it is tall (b) taller than wide (c) a perfect square (d) round
5. 5.🟦 Which aspect ratio best fits a tall phone video? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
6. 6.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
7. 7.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
8. 8.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) more colourful (c) squashed or wide (d) sharper
9. 9.🟦 Which aspect ratio best fits an album cover? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
10. 10.Which of these best fits 9:16? (a) a classic tablet screen (b) a square post (c) a tall phone video (d) a landscape video
11. 11.🟦 A photo is 2000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
12. 12.🟦 A 16:9 video frame is 1620 pixels tall. How many pixels wide is it?
13. 13.🟦 A 4:3 video frame is 90 pixels tall. How many pixels wide is it?
14. 14.🟦 Which aspect ratio best fits a square profile picture? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
15. 15.Which of these best fits 1:1? (a) an old-style monitor (b) a landscape video (c) a square post (d) a widescreen slide
16. 16.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
17. 17.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
18. 18.🟦 What is a pixel? (a) a type of paper (b) a font size (c) a tiny dot of colour (d) a sound
19. 19.🟦 An image is 720 × 540 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 1:1 (d) 4:3
20. 20.🟦 You shrink a 680 × 120 pixel image to half its width and half its height. How many pixels does it have now?
21. 21.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
22. 22.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) sharper (c) longer (d) blocky (pixelated)
23. 23.Which of these best fits 1:1? (a) a landscape video (b) a square profile picture (c) a widescreen TV (d) a tall phone video
24. 24.🟦 An image is 640 × 480 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
25. 25.🟦 An image is 40 pixels wide and 90 pixels tall. How many pixels does it have in all?
26. 26.🟦 An image is 200 pixels wide and 350 pixels tall. How many pixels does it have in all?
27. 27.🟦 You shrink a 660 × 460 pixel image to half its width and half its height. How many pixels does it have now?
28. 28.🟦 Which aspect ratio best fits a laptop film screen? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
29. 29.Which of these best fits 16:9? (a) a widescreen slide (b) an old-style monitor (c) a square profile picture (d) an upright phone screen
30. 30.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
31. 31.🟦 An image is 310 pixels wide and 250 pixels tall. How many pixels does it have in all?
32. 32.🟦 You shrink a 100 × 800 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
34. 34.🟦 An image is 120 pixels wide and 250 pixels tall. How many pixels does it have in all?
35. 35.🟦 An image is 160 pixels wide and 50 pixels tall. How many pixels does it have in all?
36. 36.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
37. 37.🟦 Which aspect ratio best fits an old-style monitor? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
38. 38.🟦 You shrink a 280 × 300 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
40. 40.🟦 A 16:9 video frame is 3840 pixels wide. How many pixels tall is it?

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