Make sure you have understood everything in this section (Lessons D15, D16, and D17).
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 4 Checklist to make sure you have completed all the recommended learning activities.

Unit D Section 4 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!

Self-Check Time!

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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.

A bike helmet includes several safety features.
  • A bike helmet has a hard exterior that resists cracking.
  • The inside of a bike helmet has a thick layer of foam to absorb force instead of the head taking that force.
  • A bike helmet has adjustable straps so that the helmet can be fitted tightly to the head.
Wide hallways allow more people to move through the hallways. This is an important safety feature so that many people can exit buildings quickly if necessary.
Plastic is lighter than glass. Plastic is less brittle and less breakable than glass. You would choose a plastic cup rather than a glass cup in a situation where you needed to carry a lightweight cup, such as on a hiking trip. You might choose a plastic cup rather than a glass cup in situations when you did not want to risk breaking the cup.
Modern electric or gas stoves have advantages over wood stoves.
  • Modern stoves are easier to use. People can turn them on or off quickly rather than having to light a fire that remains hot for some time.
  • Modern stoves are safer than wood stoves because only the burner and oven become hot as compared to the entire wood stove.
  • Modern stoves heat only small areas; woods stoves released considerable heat into the kitchen, which was advantageous in winter but disadvantageous in summer.
Nylon and steel have several advantages over animal intestines as material for guitar strings.
  • They do use animal parts; therefore, animals need not be killed to make nylon or steel guitar strings.
  • Nylon and steel strings are stronger than intestine strings are, so they do not break as easily.
  • Some musicians identify differences in tones produced; perhaps the modern strings are more consistent.

(Disadvantages include the use of non-renewable versus renewable materials.)