Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 594 · 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.🟦 A 4:3 video frame is 510 pixels tall. How many pixels wide is it?
2. 2.Which of these best fits 9:16? (a) an album cover (b) an upright phone screen (c) a square post (d) a square profile picture
3. 3.🟦 An image is 270 pixels wide and 60 pixels tall. How many pixels does it have in all?
4. 4.🟦 You shrink a 660 × 240 pixel image to half its width and half its height. How many pixels does it have now?
5. 5.🟦 A photo is 2000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
6. 6.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a sound (d) a type of paper
7. 7.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
8. 8.🟦 An image is 360 pixels wide and 310 pixels tall. How many pixels does it have in all?
9. 9.🟦 You shrink a 420 × 480 pixel image to half its width and half its height. How many pixels does it have now?
10. 10.🟦 You shrink a 280 × 120 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) squashed or wide (c) sharper (d) more colourful
12. 12.🟦 An image is 210 pixels wide and 200 pixels tall. How many pixels does it have in all?
13. 13.🟦 An image is 60 pixels wide and 70 pixels tall. How many pixels does it have in all?
14. 14.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
15. 15.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
16. 16.Which of these best fits 4:3? (a) a phone story clip (b) an older TV screen (c) a widescreen TV (d) a square profile picture
17. 17.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
18. 18.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
19. 19.🟦 Which aspect ratio best fits an older TV screen? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
20. 20.🟦 Which aspect ratio best fits a tall phone video? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
21. 21.🟦 Which aspect ratio best fits a square post? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
22. 22.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
23. 23.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
24. 24.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) sharper (c) longer (d) louder
25. 25.🟦 An image is 370 pixels wide and 360 pixels tall. How many pixels does it have in all?
26. 26.🟦 An image is 180 × 180 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
27. 27.🟦 A photo is 2000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
28. 28.🟦 An image is 90 pixels wide and 110 pixels tall. How many pixels does it have in all?
29. 29.🟦 An image is 130 pixels wide and 20 pixels tall. How many pixels does it have in all?
30. 30.🟦 An image is 1440 × 810 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 1:1 (d) 16:9
31. 31.🟦 An image is 300 × 200 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
32. 32.🟦 You shrink a 400 × 120 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 An image is 60 × 40 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
34. 34.🟦 You shrink a 700 × 200 pixel image to half its width and half its height. How many pixels does it have now?
35. 35.Which of these best fits 1:1? (a) an upright phone screen (b) an album cover (c) a widescreen TV (d) a tall phone video
36. 36.Which of these best fits 1:1? (a) a widescreen TV (b) a phone story clip (c) a square post (d) a widescreen slide
37. 37.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
38. 38.🟦 A 16:9 video frame is 1440 pixels wide. How many pixels tall is it?
39. 39.Which of these best fits 1:1? (a) an upright phone screen (b) a square profile picture (c) a widescreen TV (d) an older TV screen
40. 40.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?

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