Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 831 · 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 360 × 340 pixel image to half its width and half its height. How many pixels does it have now?
2. 2.🟦 An image is 1120 × 630 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
3. 3.🟦 Which aspect ratio best fits a phone story clip? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
4. 4.🟦 You shrink a 60 × 240 pixel image to half its width and half its height. How many pixels does it have now?
5. 5.🟦 You shrink a 120 × 480 pixel image to half its width and half its height. How many pixels does it have now?
6. 6.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
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) sharper (b) squashed or wide (c) more colourful (d) exactly the same
9. 9.🟦 A photo is 4000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
10. 10.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
11. 11.🟦 Which aspect ratio best fits a square sticker? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
12. 12.🟦 An image is 290 pixels wide and 120 pixels tall. How many pixels does it have in all?
13. 13.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
14. 14.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
15. 15.🟦 A 16:9 frame is … (a) a perfect square (b) taller than wide (c) round (d) wider than it is tall
16. 16.🟦 Which aspect ratio best fits a laptop film screen? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
17. 17.🟦 A 4:3 video frame is 320 pixels wide. How many pixels tall is it?
18. 18.🟦 A photo is 3000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 What is a pixel? (a) a tiny dot of colour (b) a type of paper (c) a sound (d) a font size
20. 20.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
21. 21.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
22. 22.🟦 A 4:3 video frame is 480 pixels tall. How many pixels wide is it?
23. 23.🟦 An image is 640 × 360 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 4:3 (d) 3:2
24. 24.Which of these best fits 16:9? (a) an older TV screen (b) a phone story clip (c) a square post (d) a widescreen slide
25. 25.🟦 A 4:3 video frame is 520 pixels wide. How many pixels tall is it?
26. 26.🟦 You shrink a 720 × 740 pixel image to half its width and half its height. How many pixels does it have now?
27. 27.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) louder (c) blocky (pixelated) (d) longer
28. 28.🟦 Which aspect ratio best fits a square post? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
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.🟦 You shrink a 340 × 140 pixel image to half its width and half its height. How many pixels does it have now?
31. 31.Which of these best fits 1:1? (a) a laptop film screen (b) a widescreen TV (c) an album cover (d) a landscape video
32. 32.🟦 An image is 920 × 690 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1
33. 33.🟦 An image is 260 pixels wide and 200 pixels tall. How many pixels does it have in all?
34. 34.🟦 An image is 290 pixels wide and 110 pixels tall. How many pixels does it have in all?
35. 35.🟦 An image is 480 × 270 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
36. 36.Which of these best fits 4:3? (a) a square sticker (b) a phone story clip (c) an older TV screen (d) a widescreen TV
37. 37.Which of these best fits 1:1? (a) a square post (b) an older TV screen (c) a classic tablet screen (d) a widescreen slide
38. 38.🟦 An image is 300 pixels wide and 20 pixels tall. How many pixels does it have in all?
39. 39.🟦 An image is 1280 × 720 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
40. 40.🟦 An image is 80 pixels wide and 330 pixels tall. How many pixels does it have in all?

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