Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 835 · 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 720 × 480 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
2. 2.Which of these best fits 16:9? (a) an album cover (b) a widescreen TV (c) a tall phone video (d) an upright phone screen
3. 3.🟦 A 16:9 frame is … (a) a perfect square (b) round (c) wider than it is tall (d) taller than wide
4. 4.🟦 A photo is 5000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
5. 5.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
6. 6.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
7. 7.🟦 A 16:9 video frame is 1350 pixels tall. How many pixels wide is it?
8. 8.🟦 You shrink a 240 × 80 pixel image to half its width and half its height. How many pixels does it have now?
9. 9.🟦 An image is 3520 × 1980 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
10. 10.🟦 A 4:3 video frame is 920 pixels wide. How many pixels tall is it?
11. 11.🟦 A photo is 4000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
12. 12.🟦 Which aspect ratio best fits a square post? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
13. 13.Which of these best fits 4:3? (a) a widescreen TV (b) a classic tablet screen (c) a square profile picture (d) a square post
14. 14.🟦 An image is 170 pixels wide and 180 pixels tall. How many pixels does it have in all?
15. 15.Which of these best fits 4:3? (a) an album cover (b) a square profile picture (c) an older TV screen (d) a square post
16. 16.Which of these best fits 9:16? (a) a widescreen TV (b) an old-style monitor (c) a square profile picture (d) a tall phone video
17. 17.🟦 A 4:3 video frame is 390 pixels tall. How many pixels wide is it?
18. 18.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
19. 19.🟦 What is a pixel? (a) a sound (b) a tiny dot of colour (c) a font size (d) a type of paper
20. 20.🟦 You shrink a 100 × 680 pixel image to half its width and half its height. How many pixels does it have now?
21. 21.Which of these best fits 16:9? (a) an older TV screen (b) a square profile picture (c) a laptop film screen (d) a phone story clip
22. 22.🟦 A photo is 5000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
23. 23.🟦 A 4:3 video frame is 160 pixels wide. How many pixels tall is it?
24. 24.🟦 Which aspect ratio best fits a tall phone video? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
25. 25.🟦 You shrink a 220 × 240 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 Which aspect ratio best fits a landscape video? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
27. 27.🟦 A photo is 2000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
28. 28.🟦 A photo is 5000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
29. 29.🟦 An image is 90 pixels wide and 250 pixels tall. How many pixels does it have in all?
30. 30.🟦 You shrink a 740 × 500 pixel image to half its width and half its height. How many pixels does it have now?
31. 31.🟦 An image is 210 pixels wide and 270 pixels tall. How many pixels does it have in all?
32. 32.🟦 You shrink a 520 × 600 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 An image is 370 pixels wide and 80 pixels tall. How many pixels does it have in all?
34. 34.🟦 An image is 40 × 30 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
35. 35.🟦 An image is 70 × 70 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
36. 36.🟦 An image is 210 pixels wide and 240 pixels tall. How many pixels does it have in all?
37. 37.🟦 An image is 240 pixels wide and 160 pixels tall. How many pixels does it have in all?
38. 38.🟦 A photo is 2000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
39. 39.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
40. 40.🟦 An image is 350 pixels wide and 200 pixels tall. How many pixels does it have in all?

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