Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 994 · 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 300 × 60 pixel image to half its width and half its height. How many pixels does it have now?
2. 2.🟦 A 16:9 video frame is 2880 pixels wide. How many pixels tall is it?
3. 3.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
4. 4.Which of these best fits 9:16? (a) an album cover (b) a widescreen TV (c) a tall phone video (d) a square profile picture
5. 5.Which of these best fits 9:16? (a) a square sticker (b) a widescreen TV (c) an old-style monitor (d) an upright phone screen
6. 6.🟦 An image is 1920 × 1080 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
7. 7.🟦 An image is 290 pixels wide and 170 pixels tall. How many pixels does it have in all?
8. 8.🟦 A 16:9 frame is … (a) taller than wide (b) wider than it is tall (c) a perfect square (d) round
9. 9.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
10. 10.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
11. 11.🟦 You shrink a 720 × 520 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.Which of these best fits 16:9? (a) an upright phone screen (b) a widescreen TV (c) a classic tablet screen (d) a square post
13. 13.🟦 A 16:9 video frame is 640 pixels wide. How many pixels tall is it?
14. 14.Which of these best fits 9:16? (a) a widescreen slide (b) a phone story clip (c) a landscape video (d) a laptop film screen
15. 15.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) longer (c) sharper (d) louder
16. 16.🟦 A photo is 1000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
17. 17.Which of these best fits 4:3? (a) a tall phone video (b) a widescreen slide (c) an older TV screen (d) a landscape video
18. 18.🟦 What is a pixel? (a) a type of paper (b) a sound (c) a font size (d) a tiny dot of colour
19. 19.🟦 The resolution of an image is … (a) the number of pixels (b) the font (c) the paper colour (d) the file name
20. 20.🟦 Which aspect ratio best fits an older TV screen? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
21. 21.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
22. 22.🟦 You shrink a 160 × 600 pixel image to half its width and half its height. How many pixels does it have now?
23. 23.🟦 A photo is 3000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 A photo is 1000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
25. 25.Which of these best fits 16:9? (a) a classic tablet screen (b) a tall phone video (c) a widescreen slide (d) a square post
26. 26.🟦 Which aspect ratio best fits a landscape video? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
27. 27.🟦 Which aspect ratio best fits a square sticker? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
28. 28.🟦 Which aspect ratio best fits an album cover? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
29. 29.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
30. 30.🟦 A 16:9 video frame is 3520 pixels wide. How many pixels tall is it?
31. 31.🟦 Which aspect ratio best fits a laptop film screen? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
32. 32.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
33. 33.🟦 You shrink a 680 × 520 pixel image to half its width and half its height. How many pixels does it have now?
34. 34.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) more colourful (c) squashed or wide (d) sharper
35. 35.🟦 A 4:3 video frame is 630 pixels tall. How many pixels wide is it?
36. 36.🟦 An image is 70 pixels wide and 20 pixels tall. How many pixels does it have in all?
37. 37.Which of these best fits 4:3? (a) an album cover (b) an old-style monitor (c) a laptop film screen (d) a widescreen TV
38. 38.🟦 A 16:9 video frame is 1620 pixels tall. How many pixels wide is it?
39. 39.🟦 An image is 140 pixels wide and 220 pixels tall. How many pixels does it have in all?
40. 40.🟦 Which aspect ratio best fits a phone story clip? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3

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