Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 720 · 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 370 pixels wide and 70 pixels tall. How many pixels does it have in all?
2. 2.🟦 An image is 60 pixels wide and 100 pixels tall. How many pixels does it have in all?
3. 3.🟦 What is a pixel? (a) a type of paper (b) a tiny dot of colour (c) a font size (d) a sound
4. 4.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
5. 5.🟦 An image is 400 pixels wide and 180 pixels tall. How many pixels does it have in all?
6. 6.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
7. 7.🟦 A photo is 1000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
8. 8.🟦 An image is 130 pixels wide and 320 pixels tall. How many pixels does it have in all?
9. 9.🟦 Which aspect ratio best fits an album cover? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
10. 10.🟦 A 4:3 video frame is 640 pixels wide. How many pixels tall is it?
11. 11.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) more colourful (c) sharper (d) squashed or wide
12. 12.🟦 Which aspect ratio best fits a widescreen slide? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
13. 13.🟦 You shrink a 580 × 180 pixel image to half its width and half its height. How many pixels does it have now?
14. 14.🟦 An image is 30 pixels wide and 30 pixels tall. How many pixels does it have in all?
15. 15.Which of these best fits 4:3? (a) an upright phone screen (b) a widescreen TV (c) an older TV screen (d) an album cover
16. 16.🟦 An image is 340 pixels wide and 30 pixels tall. How many pixels does it have in all?
17. 17.🟦 A photo is 1000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
18. 18.🟦 A 16:9 frame is … (a) wider than it is tall (b) round (c) a perfect square (d) taller than wide
19. 19.🟦 A 4:3 video frame is 90 pixels tall. How many pixels wide is it?
20. 20.🟦 An image is 630 × 420 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
21. 21.🟦 You shrink a 140 × 440 pixel image to half its width and half its height. How many pixels does it have now?
22. 22.Which of these best fits 4:3? (a) an old-style monitor (b) an album cover (c) a square sticker (d) a square post
23. 23.🟦 An image is 1600 × 900 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
24. 24.🟦 You shrink a 560 × 180 pixel image to half its width and half its height. How many pixels does it have now?
25. 25.🟦 A 4:3 video frame is 480 pixels tall. How many pixels wide is it?
26. 26.🟦 A 16:9 video frame is 480 pixels wide. How many pixels tall is it?
27. 27.🟦 A 16:9 video frame is 640 pixels wide. How many pixels tall is it?
28. 28.🟦 You shrink a 140 × 760 pixel image to half its width and half its height. How many pixels does it have now?
29. 29.🟦 Which aspect ratio best fits an upright phone screen? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
30. 30.🟦 An image is 3520 × 1980 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
31. 31.🟦 An image is 370 pixels wide and 120 pixels tall. How many pixels does it have in all?
32. 32.🟦 An image is 360 pixels wide and 260 pixels tall. How many pixels does it have in all?
33. 33.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) blocky (pixelated) (c) sharper (d) longer
34. 34.🟦 An image is 140 × 140 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
35. 35.🟦 An image is 300 pixels wide and 300 pixels tall. How many pixels does it have in all?
36. 36.🟦 Which aspect ratio best fits a square sticker? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
37. 37.🟦 An image is 90 × 90 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
38. 38.🟦 An image is 160 × 160 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
39. 39.🟦 A 4:3 video frame is 450 pixels tall. How many pixels wide is it?
40. 40.🟦 An image is 240 × 180 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1

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