Make sure you have understood everything in this section (Lessons C4, C5, C6, C7, and C8).
Use the Self-Check below, and the Self-Check & Lesson Review Tips to guide your learning.
This is also a good time to visit your Section 2 Checklist to make sure you have completed all the recommended learning activities.

Unit C Section 2 Self-Check

Instructions


Complete the following 6 steps. Don't skip steps – if you do them in order, you will confirm your understanding of this section and create a study bank for the future.

  1. DOWNLOAD the self-check quiz by clicking here.

  2. ANSWER all the questions on the downloaded quiz in the spaces provided. Think carefully before typing your answers. Review the lessons of this section if you need to. Save your quiz when you are done.

  3. COMPARE your answers with the suggested "Self-Check Quiz Answers" below. WAIT! You didn't skip step 2, did you? It's very important to carefully write out your own answers before checking the suggested answers.

  4. REVISE your quiz answers if you need to. If you answered all the questions correctly, you can skip this step. Revise means to change, fix, and add extra notes if you need to. This quiz is NOT FOR MARKS, so it is perfectly OK to correct any mistakes you made. This will make your self-check quiz an excellent study tool you can use later.

  5. SAVE your quiz to a folder on your computer, or to your Private Files. That way you will know where it is for later studying.

  6. CHECK with your teacher if you need to. If after completing all these steps you are still not sure about the questions or your answers, you should ask for more feedback from your teacher. To do this, post in the Course Questions Forum, or send your teacher an email. In either case, attach your completed quiz and ask; "Can you look at this quiz and give me some feedback please?" They will be happy to help you!

Be a Self-Check

Superhero!



Self-Check Quiz Answers

Click each of the suggested answers below, and carefully compare your answers to the suggested answers.

If you have not done the quiz yet – STOP – and go back to step 1 above. Do not look at the answers without first trying the questions.

Door peepholes are made from a transparent material. In order to form a clear image of the person outside the door, light must pass completely through the peephole.
Because a convex mirror has an outward curve, it allows a driver to see light from a very wide angle. The light from cars approaching from different directions are reflected by the convex mirror to the driver’s eyes. In the diagram below, you can see that the white car can see orange and the blue car by looking into the convex mirror. The dark blue area represents tall buildings, so the driver would not normally see the approaching cars. If a flat mirror was used, it would allow the driver to see only one specific direction, any cars not in that spot would not be seen.


Light from the bottom of the pool bends, or refracts, as it exits the pool water, into the air. The angle of the refracted light rays make the bottom of the pool appear closer than it actually is.


A magnifying glass contains a concave lens. The image formed by a concave lens depends on the position of the object relative to the focal point of the lens. When an object is located very close to the concave lens, between the focal point and the lens, the image produced is larger and right-side-up. When an object is located far beyond the lens’ focal point, the image produced is smaller and upside-down.
White light contains all colours of visible light. Different colours of visible light have different wavelengths. As a result of their different wavelengths, different colours of light bend different amounts when they travel through a glass prism. Purple light has a shorter wavelength and bends more than red light, which has a longer wavelength.