Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 140 · 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.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
2. 2.🟦 You shrink a 620 × 660 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.🟦 An image is 380 pixels wide and 180 pixels tall. How many pixels does it have in all?
4. 4.🟦 An image is 290 pixels wide and 270 pixels tall. How many pixels does it have in all?
5. 5.Which of these best fits 4:3? (a) a widescreen slide (b) a landscape video (c) an old-style monitor (d) a phone story clip
6. 6.🟦 The resolution of an image is … (a) the file name (b) the number of pixels (c) the paper colour (d) the font
7. 7.🟦 An image is 210 pixels wide and 30 pixels tall. How many pixels does it have in all?
8. 8.Which of these best fits 1:1? (a) a square sticker (b) a tall phone video (c) an upright phone screen (d) an older TV screen
9. 9.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
10. 10.🟦 A 16:9 video frame is 540 pixels tall. How many pixels wide is it?
11. 11.🟦 An image is 2240 × 1260 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2
12. 12.Which of these best fits 16:9? (a) an album cover (b) a tall phone video (c) a classic tablet screen (d) a widescreen TV
13. 13.🟦 Which aspect ratio best fits a landscape video? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
14. 14.🟦 An image is 360 × 240 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 3:2 (d) 1:1
15. 15.Which of these best fits 9:16? (a) a widescreen slide (b) a tall phone video (c) an old-style monitor (d) a laptop film screen
16. 16.🟦 An image is 120 pixels wide and 110 pixels tall. How many pixels does it have in all?
17. 17.🟦 You shrink a 440 × 180 pixel image to half its width and half its height. How many pixels does it have now?
18. 18.🟦 A photo is 3000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 A photo is 6000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
20. 20.🟦 You shrink a 320 × 640 pixel image to half its width and half its height. How many pixels does it have now?
21. 21.🟦 Which aspect ratio best fits an album cover? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
22. 22.🟦 An image is 240 × 180 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
23. 23.🟦 An image is 120 × 90 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
24. 24.🟦 A photo is 2000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
25. 25.Which of these best fits 1:1? (a) a widescreen TV (b) a widescreen slide (c) a square post (d) a landscape video
26. 26.🟦 A 4:3 video frame is 420 pixels tall. How many pixels wide is it?
27. 27.🟦 An image is 960 × 540 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
28. 28.🟦 Which aspect ratio best fits a widescreen slide? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
29. 29.Which of these best fits 9:16? (a) a laptop film screen (b) a widescreen slide (c) an older TV screen (d) a phone story clip
30. 30.Which of these best fits 4:3? (a) a widescreen TV (b) a phone story clip (c) a classic tablet screen (d) a square post
31. 31.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
32. 32.🟦 A photo is 1000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
33. 33.🟦 An image is 10 × 10 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
34. 34.Which of these best fits 16:9? (a) a laptop film screen (b) a phone story clip (c) a square sticker (d) an upright phone screen
35. 35.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) sharper (c) more colourful (d) squashed or wide
36. 36.🟦 A 16:9 frame is … (a) wider than it is tall (b) a perfect square (c) taller than wide (d) round
37. 37.🟦 A 16:9 video frame is 3680 pixels wide. How many pixels tall is it?
38. 38.🟦 You shrink a 160 × 740 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.🟦 A 16:9 video frame is 1890 pixels tall. How many pixels wide is it?
40. 40.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =

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