Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 45 · 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 4-inch-wide print?
2. 2.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) blocky (pixelated) (c) louder (d) sharper
3. 3.🟦 Which aspect ratio best fits a landscape video? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
4. 4.🟦 Which aspect ratio best fits a widescreen slide? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
5. 5.🟦 Which aspect ratio best fits an old-style monitor? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
6. 6.🟦 What is a pixel? (a) a sound (b) a type of paper (c) a font size (d) a tiny dot of colour
7. 7.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) sharper (c) more colourful (d) exactly the same
8. 8.🟦 A photo is 5000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
9. 9.🟦 Which aspect ratio best fits a square sticker? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
10. 10.Which of these best fits 9:16? (a) a tall phone video (b) a classic tablet screen (c) a widescreen slide (d) a square sticker
11. 11.Which of these best fits 4:3? (a) a widescreen TV (b) a laptop film screen (c) a landscape video (d) an older TV screen
12. 12.🟦 An image is 200 pixels wide and 360 pixels tall. How many pixels does it have in all?
13. 13.🟦 An image is 110 × 110 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1
14. 14.🟦 The resolution of an image is … (a) the file name (b) the paper colour (c) the font (d) the number of pixels
15. 15.Which of these best fits 1:1? (a) a square sticker (b) an upright phone screen (c) a widescreen slide (d) an old-style monitor
16. 16.🟦 A 4:3 video frame is 280 pixels wide. How many pixels tall is it?
17. 17.Which of these best fits 16:9? (a) an older TV screen (b) a widescreen TV (c) a phone story clip (d) an album cover
18. 18.🟦 Which aspect ratio best fits a laptop film screen? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
19. 19.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
20. 20.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
21. 21.🟦 Which aspect ratio best fits a tall phone video? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
22. 22.🟦 A 16:9 video frame is 810 pixels tall. How many pixels wide is it?
23. 23.🟦 A 16:9 frame is … (a) taller than wide (b) wider than it is tall (c) a perfect square (d) round
24. 24.🟦 An image is 260 pixels wide and 40 pixels tall. How many pixels does it have in all?
25. 25.Which of these best fits 9:16? (a) an upright phone screen (b) a widescreen slide (c) a square sticker (d) a landscape video
26. 26.🟦 An image is 160 × 90 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
27. 27.🟦 A 16:9 video frame is 1260 pixels tall. How many pixels wide is it?
28. 28.🟦 You shrink an 80 × 400 pixel image to half its width and half its height. How many pixels does it have now?
29. 29.🟦 An image is 3200 × 1800 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
30. 30.🟦 A photo is 1000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
31. 31.🟦 An image is 520 × 390 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
32. 32.🟦 A 4:3 video frame is 660 pixels tall. How many pixels wide is it?
33. 33.🟦 You shrink a 540 × 520 pixel image to half its width and half its height. How many pixels does it have now?
34. 34.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
35. 35.Which of these best fits 9:16? (a) a phone story clip (b) a landscape video (c) a classic tablet screen (d) a square profile picture
36. 36.🟦 An image is 380 pixels wide and 170 pixels tall. How many pixels does it have in all?
37. 37.🟦 An image is 1920 × 1080 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
38. 38.🟦 An image is 130 pixels wide and 330 pixels tall. How many pixels does it have in all?
39. 39.🟦 Which aspect ratio best fits a square post? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
40. 40.🟦 You shrink a 680 × 140 pixel image to half its width and half its height. How many pixels does it have now?

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