Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 7 · 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 photo is 5000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
2. 2.🟦 You shrink a 360 × 760 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.🟦 A 16:9 frame is … (a) wider than it is tall (b) round (c) a perfect square (d) taller than wide
4. 4.🟦 A 4:3 video frame is 240 pixels wide. How many pixels tall is it?
5. 5.🟦 Which aspect ratio best fits a widescreen TV? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
6. 6.🟦 A 16:9 video frame is 1120 pixels wide. How many pixels tall is it?
7. 7.Which of these best fits 4:3? (a) a phone story clip (b) a tall phone video (c) an album cover (d) a classic tablet screen
8. 8.Which of these best fits 16:9? (a) a classic tablet screen (b) an album cover (c) an older TV screen (d) a widescreen TV
9. 9.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) exactly the same (c) more colourful (d) squashed or wide
10. 10.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
11. 11.🟦 An image is 220 pixels wide and 120 pixels tall. How many pixels does it have in all?
12. 12.🟦 An image is 160 pixels wide and 70 pixels tall. How many pixels does it have in all?
13. 13.🟦 Which aspect ratio best fits a widescreen slide? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
14. 14.Which of these best fits 16:9? (a) a square sticker (b) a tall phone video (c) a classic tablet screen (d) a landscape video
15. 15.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) longer (c) sharper (d) blocky (pixelated)
16. 16.🟦 An image is 190 pixels wide and 270 pixels tall. How many pixels does it have in all?
17. 17.Which of these best fits 16:9? (a) an old-style monitor (b) a laptop film screen (c) a square post (d) an older TV screen
18. 18.🟦 An image is 300 pixels wide and 210 pixels tall. How many pixels does it have in all?
19. 19.🟦 Which aspect ratio best fits a tall phone video? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
20. 20.Which of these best fits 9:16? (a) a square post (b) a classic tablet screen (c) a tall phone video (d) an album cover
21. 21.🟦 You shrink a 40 × 620 pixel image to half its width and half its height. How many pixels does it have now?
22. 22.Which of these best fits 16:9? (a) a square post (b) an older TV screen (c) a widescreen slide (d) a classic tablet screen
23. 23.🟦 Which aspect ratio best fits an older TV screen? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
24. 24.🟦 A photo is 4000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
25. 25.🟦 The resolution of an image is … (a) the number of pixels (b) the font (c) the file name (d) the paper colour
26. 26.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
27. 27.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
28. 28.🟦 You shrink a 680 × 500 pixel image to half its width and half its height. How many pixels does it have now?
29. 29.🟦 A 16:9 video frame is 2240 pixels wide. How many pixels tall is it?
30. 30.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
31. 31.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
32. 32.Which of these best fits 1:1? (a) a widescreen slide (b) a landscape video (c) a laptop film screen (d) a square sticker
33. 33.🟦 Which aspect ratio best fits a landscape video? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
34. 34.🟦 A 16:9 video frame is 3360 pixels wide. How many pixels tall is it?
35. 35.🟦 You shrink a 220 × 520 pixel image to half its width and half its height. How many pixels does it have now?
36. 36.🟦 A photo is 6000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
37. 37.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
38. 38.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
39. 39.Which of these best fits 1:1? (a) a phone story clip (b) a widescreen slide (c) a square post (d) an older TV screen
40. 40.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =

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