Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 56 · 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.🟦 The resolution of an image is … (a) the number of pixels (b) the font (c) the file name (d) the paper colour
2. 2.🟦 You shrink a 420 × 640 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.🟦 Which aspect ratio best fits a square sticker? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
4. 4.🟦 Which aspect ratio best fits a classic tablet screen? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
5. 5.Which of these best fits 9:16? (a) a phone story clip (b) a square post (c) an album cover (d) a landscape video
6. 6.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
7. 7.🟦 A 4:3 video frame is 80 pixels wide. How many pixels tall is it?
8. 8.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) sharper (c) squashed or wide (d) more colourful
9. 9.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) blocky (pixelated) (c) longer (d) sharper
10. 10.🟦 An image is 210 pixels wide and 190 pixels tall. How many pixels does it have in all?
11. 11.🟦 You shrink a 220 × 720 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.🟦 An image is 20 pixels wide and 220 pixels tall. How many pixels does it have in all?
13. 13.Which of these best fits 16:9? (a) a tall phone video (b) a square sticker (c) a widescreen TV (d) a classic tablet screen
14. 14.🟦 An image is 560 × 420 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
15. 15.Which of these best fits 1:1? (a) a widescreen TV (b) an upright phone screen (c) an album cover (d) a phone story clip
16. 16.🟦 You shrink a 740 × 440 pixel image to half its width and half its height. How many pixels does it have now?
17. 17.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
18. 18.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
19. 19.🟦 An image is 30 pixels wide and 230 pixels tall. How many pixels does it have in all?
20. 20.🟦 A 4:3 video frame is 480 pixels wide. How many pixels tall is it?
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.🟦 Which aspect ratio best fits an album cover? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
23. 23.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
24. 24.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a type of paper (d) a sound
25. 25.🟦 A 16:9 video frame is 3680 pixels wide. How many pixels tall is it?
26. 26.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
27. 27.🟦 A photo is 2000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
28. 28.🟦 You shrink an 80 × 220 pixel image to half its width and half its height. How many pixels does it have now?
29. 29.🟦 You shrink a 360 × 760 pixel image to half its width and half its height. How many pixels does it have now?
30. 30.🟦 You shrink a 160 × 740 pixel image to half its width and half its height. How many pixels does it have now?
31. 31.🟦 A 16:9 video frame is 720 pixels tall. How many pixels wide is it?
32. 32.🟦 You shrink an 80 × 320 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.Which of these best fits 4:3? (a) a widescreen TV (b) a phone story clip (c) a square profile picture (d) a classic tablet screen
34. 34.🟦 An image is 640 × 360 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
35. 35.🟦 You shrink a 620 × 160 pixel image to half its width and half its height. How many pixels does it have now?
36. 36.🟦 Which aspect ratio best fits a tall phone video? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
37. 37.🟦 A 16:9 video frame is 1280 pixels wide. How many pixels tall is it?
38. 38.🟦 You shrink a 120 × 480 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.🟦 An image is 290 pixels wide and 340 pixels tall. How many pixels does it have in all?
40. 40.🟦 Which aspect ratio best fits a widescreen TV? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16

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