Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 536 · 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 620 × 680 pixel image to half its width and half its height. How many pixels does it have now?
2. 2.🟦 An image is 480 × 320 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
3. 3.🟦 Which aspect ratio best fits a classic tablet screen? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
4. 4.🟦 A 4:3 video frame is 640 pixels wide. How many pixels tall is it?
5. 5.🟦 What is a pixel? (a) a font size (b) a sound (c) a tiny dot of colour (d) a type of paper
6. 6.🟦 A photo is 3000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
7. 7.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) more colourful (c) exactly the same (d) sharper
8. 8.Which of these best fits 4:3? (a) a widescreen TV (b) a square sticker (c) an older TV screen (d) a widescreen slide
9. 9.🟦 A 16:9 frame is … (a) taller than wide (b) round (c) wider than it is tall (d) a perfect square
10. 10.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
11. 11.🟦 A photo is 1000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
12. 12.🟦 An image is 150 pixels wide and 330 pixels tall. How many pixels does it have in all?
13. 13.🟦 An image is 70 pixels wide and 340 pixels tall. How many pixels does it have in all?
14. 14.🟦 An image is 360 pixels wide and 290 pixels tall. How many pixels does it have in all?
15. 15.🟦 You shrink an 800 × 160 pixel image to half its width and half its height. How many pixels does it have now?
16. 16.🟦 You shrink a 640 × 360 pixel image to half its width and half its height. How many pixels does it have now?
17. 17.🟦 A 4:3 video frame is 880 pixels wide. How many pixels tall is it?
18. 18.🟦 A photo is 3000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 You shrink a 120 × 700 pixel image to half its width and half its height. How many pixels does it have now?
20. 20.🟦 A 4:3 video frame is 280 pixels wide. How many pixels tall is it?
21. 21.🟦 A 16:9 video frame is 2070 pixels tall. How many pixels wide is it?
22. 22.🟦 A photo is 5000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
23. 23.🟦 You shrink a 700 × 300 pixel image to half its width and half its height. How many pixels does it have now?
24. 24.🟦 An image is 3840 × 2160 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
25. 25.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) longer (c) louder (d) blocky (pixelated)
26. 26.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
27. 27.🟦 A photo is 2000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
28. 28.🟦 An image is 250 pixels wide and 220 pixels tall. How many pixels does it have in all?
29. 29.🟦 An image is 150 pixels wide and 40 pixels tall. How many pixels does it have in all?
30. 30.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
31. 31.Which of these best fits 1:1? (a) an old-style monitor (b) a landscape video (c) a square profile picture (d) a tall phone video
32. 32.🟦 A 16:9 video frame is 320 pixels wide. How many pixels tall is it?
33. 33.🟦 A photo is 4000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
34. 34.🟦 An image is 40 pixels wide and 240 pixels tall. How many pixels does it have in all?
35. 35.🟦 A 16:9 video frame is 2160 pixels tall. How many pixels wide is it?
36. 36.🟦 An image is 330 pixels wide and 170 pixels tall. How many pixels does it have in all?
37. 37.Which of these best fits 4:3? (a) an upright phone screen (b) a square sticker (c) a square profile picture (d) a classic tablet screen
38. 38.Which of these best fits 1:1? (a) a widescreen slide (b) an old-style monitor (c) a laptop film screen (d) a square post
39. 39.🟦 A photo is 3000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
40. 40.🟦 A 16:9 video frame is 3360 pixels wide. How many pixels tall is it?

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