Make sure you have understood everything in this section (Lessons D1, D2 and D3).
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 1 Checklist to make sure you have completed all the recommended learning activities.

Unit D Section 1 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.

An apple peeler contains a wedge as the peeling blade. The sharp wedge applies force to the apple peel, cutting it. The peeling blade is attached to a wheel and axle crankshaft that holds the apple. Turning the wheel and axle spins the apple around the peeling blade wedge, easily cutting the peel off the apple.
You likely use a car or truck for transportation. Without this machine, you would not be able to travel to distant places very quickly. You would have to use a slower form of transportation like a bicycle, horse, or walking. Travelling would be colder in the winter without a heated vehicle. Because travelling would be slower, you would probably stay closer to home.
Stairs are an inclined plane, which is a simple machine. Stairs make it easier for your body to climb upwards, compared to climbing straight up on a ladder. You only need to use your legs to climb stairs, while you need to use both your arms and legs to climb a ladder.
Before electricity, machines needed to be powered by another source. This was often human or animal motion, although some machines were powered by water and wind. Electricity provides a constant source of energy that replaces the effort of humans.
Pruning shears contain two wedges as the clipping blades, and two Class 1 levers that are connected at the fulcrum. The blade wedges help humans apply more force to cut into stiff branches. The levers help apply a greater amount of force to the blades. The fulcrum of the pruning shears is close to the blades. This means a gardener has to move the levers a longer distance, but they produce a greater force on the blades.