Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 4 · 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.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) squashed or wide (c) more colourful (d) sharper
3. 3.Which of these best fits 4:3? (a) an album cover (b) a classic tablet screen (c) a square post (d) a widescreen slide
4. 4.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
5. 5.🟦 An image is 330 pixels wide and 390 pixels tall. How many pixels does it have in all?
6. 6.🟦 An image is 3840 × 2160 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
7. 7.🟦 An image is 140 × 140 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
8. 8.🟦 Which aspect ratio best fits a laptop film screen? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
9. 9.🟦 What is a pixel? (a) a font size (b) a type of paper (c) a sound (d) a tiny dot of colour
10. 10.🟦 You shrink a 760 × 720 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 A photo is 1000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
12. 12.🟦 An image is 100 pixels wide and 160 pixels tall. How many pixels does it have in all?
13. 13.🟦 Which aspect ratio best fits a tall phone video? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
14. 14.🟦 Which aspect ratio best fits a classic tablet screen? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
15. 15.🟦 An image is 120 pixels wide and 20 pixels tall. How many pixels does it have in all?
16. 16.🟦 The resolution of an image is … (a) the number of pixels (b) the font (c) the paper colour (d) the file name
17. 17.🟦 An image is 250 pixels wide and 240 pixels tall. How many pixels does it have in all?
18. 18.Which of these best fits 1:1? (a) a square profile picture (b) a classic tablet screen (c) a landscape video (d) a phone story clip
19. 19.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) louder (c) blocky (pixelated) (d) sharper
20. 20.🟦 An image is 300 pixels wide and 350 pixels tall. How many pixels does it have in all?
21. 21.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
22. 22.🟦 A 16:9 video frame is 960 pixels wide. How many pixels tall is it?
23. 23.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
24. 24.🟦 A 16:9 video frame is 3520 pixels wide. How many pixels tall is it?
25. 25.🟦 An image is 390 × 260 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 1:1 (d) 4:3
26. 26.🟦 You shrink a 640 × 680 pixel image to half its width and half its height. How many pixels does it have now?
27. 27.🟦 An image is 270 pixels wide and 230 pixels tall. How many pixels does it have in all?
28. 28.🟦 A photo is 1000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
29. 29.🟦 You shrink a 780 × 560 pixel image to half its width and half its height. How many pixels does it have now?
30. 30.🟦 An image is 350 pixels wide and 40 pixels tall. How many pixels does it have in all?
31. 31.🟦 A 16:9 frame is … (a) taller than wide (b) wider than it is tall (c) a perfect square (d) round
32. 32.Which of these best fits 9:16? (a) a tall phone video (b) a square profile picture (c) a landscape video (d) a square post
33. 33.🟦 An image is 50 pixels wide and 50 pixels tall. How many pixels does it have in all?
34. 34.🟦 You shrink a 780 × 700 pixel image to half its width and half its height. How many pixels does it have now?
35. 35.🟦 A 16:9 video frame is 3040 pixels wide. How many pixels tall is it?
36. 36.🟦 You shrink a 620 × 520 pixel image to half its width and half its height. How many pixels does it have now?
37. 37.🟦 A 16:9 video frame is 1120 pixels wide. How many pixels tall is it?
38. 38.🟦 You shrink a 140 × 480 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.🟦 Which aspect ratio best fits a square profile picture? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
40. 40.🟦 An image is 230 × 230 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3

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