Web Worksheet: Accessibility Basics

HTML and CSS lesson 24: Accessibility basics · Set 490 · 40 questions

Code tip (Pages for everyone): Headings go down one level at a time: h1 → h2 → h3 (they may jump back up). Alt text on images, clear link text, labels on form boxes, big enough text. Strong contrast (black on white, yellow on black) is easy to read; light grey on white is not.

1. 1.Which colour pair is easy to read? (a) red on green (b) light grey on white (c) white on black (d) pink on red
2. 2.♿ Is this heading order correct (no level skipped)?
   <h1> → <h3> → <h4> → <h5> (a) Yes (b) No
3. 3.🌗 Is blue on purple easy or hard to read? (a) hard to read (b) easy to read
4. 4.🌗 Is black on white easy or hard to read? (a) hard to read (b) easy to read
5. 5.Which colour pair is hard to read? (a) dark grey on white (b) black on white (c) yellow on black (d) pink on red
6. 6.♿ Does this help everyone, or make the page harder to use: images with no alt? (a) helps everyone (b) makes it harder
7. 7.♿ Does this help everyone, or make the page harder to use: use big enough text? (a) makes it harder (b) helps everyone
8. 8.♿ Is this heading order correct (no level skipped)?
   <h1> → <h1> → <h2> → <h2> (a) No (b) Yes
9. 9.Which colour pair is easy to read? (a) blue on purple (b) yellow on black (c) pink on red (d) yellow on white
10. 10.♿ Is this heading order correct (no level skipped)?
    <h1> → <h2> → <h4> → <h5> (a) Yes (b) No
11. 11.🌗 Is light grey on white easy or hard to read? (a) hard to read (b) easy to read
12. 12.True or false: “label every form box” makes the page harder to use. (a) False (b) True
13. 13.True or false: “use headings in order” helps everyone use the page. (a) True (b) False
14. 14.Which colour pair is hard to read? (a) yellow on black (b) white on dark blue (c) white on black (d) light grey on white
15. 15.Which colour pair is hard to read? (a) dark grey on white (b) red on green (c) white on black (d) white on dark blue
16. 16.♿ Is this heading order correct (no level skipped)?
    <h1> → <h1> → <h1> → <h1> (a) Yes (b) No
17. 17.True or false: “images with no alt” makes the page harder to use. (a) False (b) True
18. 18.♿ Is this heading order correct (no level skipped)?
    <h1> → <h2> → <h2> → <h4> (a) No (b) Yes
19. 19.♿ Does this help everyone, or make the page harder to use: add alt text to images? (a) helps everyone (b) makes it harder
20. 20.Which colour pair is easy to read? (a) blue on purple (b) light grey on white (c) yellow on white (d) black on white
21. 21.♿ Is this heading order correct (no level skipped)?
    <h1> → <h1> → <h2> → <h4> (a) No (b) Yes
22. 22.🌗 Is pink on red easy or hard to read? (a) hard to read (b) easy to read
23. 23.♿ What does good colour contrast mean? (a) only red text (b) no colours at all (c) text stands out clearly (d) many bright colours
24. 24.Which colour pair is hard to read? (a) white on dark blue (b) black on white (c) white on black (d) yellow on white
25. 25.♿ A part of the page is under a <h5> heading. Which tag should its sub-heading use? (a) <h1> (b) <h6> (c) <h5> (d) <h2>
26. 26.♿ Does this help everyone, or make the page harder to use: skipping heading levels? (a) helps everyone (b) makes it harder
27. 27.True or false: “write clear link text” helps everyone use the page. (a) False (b) True
28. 28.🌗 Is red on green easy or hard to read? (a) hard to read (b) easy to read
29. 29.♿ A part of the page is under a <h3> heading. Which tag should its sub-heading use? (a) <h5> (b) <h4> (c) <h6> (d) <h2>
30. 30.True or false: “tiny grey text” helps everyone use the page. (a) True (b) False
31. 31.Which colour pair is easy to read? (a) blue on purple (b) dark grey on white (c) yellow on white (d) red on green
32. 32.♿ Does this help everyone, or make the page harder to use: use headings in order? (a) helps everyone (b) makes it harder
33. 33.♿ Does this help everyone, or make the page harder to use: label every form box? (a) helps everyone (b) makes it harder
34. 34.True or false: “use headings in order” makes the page harder to use. (a) False (b) True
35. 35.🌗 Is yellow on white easy or hard to read? (a) easy to read (b) hard to read
36. 36.♿ Who uses a screen reader? (a) people who are blind (b) only teachers (c) only robots (d) only coders
37. 37.♿ Does this help everyone, or make the page harder to use: write clear link text? (a) helps everyone (b) makes it harder
38. 38.♿ Is this heading order correct (no level skipped)?
    <h1> → <h2> → <h4> → <h4> (a) Yes (b) No
39. 39.🌗 Is white on black easy or hard to read? (a) hard to read (b) easy to read
40. 40.True or false: “add alt text to images” helps everyone use the page. (a) False (b) True

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