Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 59 · 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 270 pixels wide and 240 pixels tall. How many pixels does it have in all?
2. 2.🟦 You shrink a 160 × 80 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.Which of these best fits 9:16? (a) an old-style monitor (b) an upright phone screen (c) an album cover (d) a laptop film screen
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.Which of these best fits 16:9? (a) a square sticker (b) an old-style monitor (c) a laptop film screen (d) a square post
6. 6.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) more colourful (c) sharper (d) exactly the same
7. 7.🟦 An image is 660 × 440 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 3:2 (d) 1:1
8. 8.Which of these best fits 4:3? (a) a phone story clip (b) an album cover (c) a tall phone video (d) a classic tablet screen
9. 9.🟦 An image is 270 × 180 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
10. 10.🟦 An image is 480 × 320 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
11. 11.🟦 You shrink a 40 × 340 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.🟦 A photo is 1000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
13. 13.🟦 The resolution of an image is … (a) the number of pixels (b) the file name (c) the paper colour (d) the font
14. 14.🟦 Which aspect ratio best fits an album cover? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
15. 15.🟦 A 16:9 video frame is 540 pixels tall. How many pixels wide is it?
16. 16.🟦 A 16:9 video frame is 360 pixels tall. How many pixels wide is it?
17. 17.🟦 An image is 400 × 300 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
18. 18.🟦 An image is 450 × 300 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
19. 19.🟦 An image is 150 × 100 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
20. 20.Which of these best fits 16:9? (a) an upright phone screen (b) an older TV screen (c) a widescreen TV (d) a phone story clip
21. 21.Which of these best fits 16:9? (a) a tall phone video (b) a widescreen slide (c) a classic tablet screen (d) an album cover
22. 22.🟦 An image is 260 pixels wide and 390 pixels tall. How many pixels does it have in all?
23. 23.🟦 You shrink a 640 × 140 pixel image to half its width and half its height. How many pixels does it have now?
24. 24.🟦 Which aspect ratio best fits a widescreen TV? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
25. 25.🟦 An image is 160 × 160 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
26. 26.Which of these best fits 9:16? (a) a tall phone video (b) a laptop film screen (c) a widescreen slide (d) an album cover
27. 27.🟦 An image is 140 pixels wide and 330 pixels tall. How many pixels does it have in all?
28. 28.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a type of paper (d) a sound
29. 29.🟦 An image is 760 × 570 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
30. 30.🟦 Which aspect ratio best fits an upright phone screen? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
31. 31.🟦 You shrink a 440 × 680 pixel image to half its width and half its height. How many pixels does it have now?
32. 32.🟦 An image is 280 × 210 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 1:1 (d) 4:3
33. 33.🟦 A 16:9 video frame is 1760 pixels wide. How many pixels tall is it?
34. 34.🟦 A 16:9 video frame is 1800 pixels tall. How many pixels wide is it?
35. 35.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) longer (c) sharper (d) blocky (pixelated)
36. 36.Which of these best fits 4:3? (a) an album cover (b) an older TV screen (c) a widescreen TV (d) a square sticker
37. 37.🟦 An image is 40 pixels wide and 60 pixels tall. How many pixels does it have in all?
38. 38.🟦 An image is 3520 × 1980 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
39. 39.🟦 A 16:9 video frame is 3840 pixels wide. How many pixels tall is it?
40. 40.🟦 An image is 3680 × 2070 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2

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