Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 9 · 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.🟦 You shrink a 460 × 580 pixel image to half its width and half its height. How many pixels does it have now?
2. 2.🟦 Which aspect ratio best fits a classic tablet screen? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
3. 3.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
4. 4.🟦 A 4:3 video frame is 90 pixels tall. How many pixels wide is it?
5. 5.🟦 You shrink a 480 × 620 pixel image to half its width and half its height. How many pixels does it have now?
6. 6.🟦 A photo is 5000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
7. 7.🟦 An image is 360 pixels wide and 300 pixels tall. How many pixels does it have in all?
8. 8.🟦 An image is 380 pixels wide and 370 pixels tall. How many pixels does it have in all?
9. 9.🟦 A 16:9 video frame is 810 pixels tall. How many pixels wide is it?
10. 10.🟦 You shrink a 360 × 80 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 A 4:3 video frame is 680 pixels wide. How many pixels tall is it?
12. 12.🟦 A 4:3 video frame is 390 pixels tall. How many pixels wide is it?
13. 13.🟦 What is a pixel? (a) a font size (b) a type of paper (c) a tiny dot of colour (d) a sound
14. 14.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) longer (c) blocky (pixelated) (d) louder
15. 15.🟦 A photo is 5000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
16. 16.🟦 An image is 310 pixels wide and 150 pixels tall. How many pixels does it have in all?
17. 17.Which of these best fits 4:3? (a) a classic tablet screen (b) a widescreen slide (c) a landscape video (d) a laptop film screen
18. 18.🟦 An image is 140 pixels wide and 80 pixels tall. How many pixels does it have in all?
19. 19.🟦 An image is 50 pixels wide and 220 pixels tall. How many pixels does it have in all?
20. 20.🟦 A 4:3 video frame is 920 pixels wide. How many pixels tall is it?
21. 21.🟦 Which aspect ratio best fits a square post? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
22. 22.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) squashed or wide (c) sharper (d) more colourful
23. 23.🟦 Which aspect ratio best fits a landscape video? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
24. 24.Which of these best fits 16:9? (a) an older TV screen (b) a square post (c) an old-style monitor (d) a widescreen TV
25. 25.🟦 A 16:9 frame is … (a) taller than wide (b) wider than it is tall (c) round (d) a perfect square
26. 26.🟦 The resolution of an image is … (a) the file name (b) the font (c) the paper colour (d) the number of pixels
27. 27.🟦 An image is 70 × 70 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
28. 28.Which of these best fits 1:1? (a) a classic tablet screen (b) a square profile picture (c) a tall phone video (d) a widescreen TV
29. 29.🟦 A photo is 6000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
30. 30.🟦 You shrink a 60 × 100 pixel image to half its width and half its height. How many pixels does it have now?
31. 31.Which of these best fits 4:3? (a) a square profile picture (b) an old-style monitor (c) a widescreen TV (d) a landscape video
32. 32.🟦 An image is 190 pixels wide and 300 pixels tall. How many pixels does it have in all?
33. 33.🟦 An image is 3200 × 1800 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
34. 34.🟦 An image is 640 × 360 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
35. 35.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
36. 36.🟦 Which aspect ratio best fits a square profile picture? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
37. 37.Which of these best fits 9:16? (a) a square profile picture (b) an upright phone screen (c) an old-style monitor (d) a widescreen TV
38. 38.🟦 An image is 1280 × 720 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
39. 39.🟦 An image is 230 pixels wide and 380 pixels tall. How many pixels does it have in all?
40. 40.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?

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