Unit D Review

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  Review

On the next page, you will take a 35-question unit test. Are you confident you know the Unit D material well?

It's always a good idea to make sure you are prepared for a test by studying. You can do this by returning to the Table of Contents and reviewing any Unit D lessons you are not sure about.

Also, you can review unit D material by trying three review exercises.

  1. Create a mind map of the unit material. A mind map is a visual representation of how all the ideas and concepts of the unit connect with each other. Try building a mind map by clicking the first tab below.

  2. Do a puzzle! A puzzle can be a fun way to review unit concepts or terms. Try the puzzle we have prepared for you by clicking the second tab below.

  3. Practice answering some questions. We have prepared some questions that will really get you thinking about the unit material. Try the practice questions by clicking the third tab below.

Remember, these are just suggestions for review! In addition to doing these three review exercises, you might also:

  • Contact your teacher for assistance if you are not sure about any concepts.
  • Check the course glossary and read all the unit D terms.
  • Make your own study cards and test yourself.

Whatever you choose to do, good luck with your unit review!

Create a Mind Map
A mind map is a visual representation of how all the ideas and concepts of the unit connect with each other. There are several ways you can create a mind map:

  • You can create a mind map simply with just a pen and a sheet of paper.
  • You might try to build one using a free drawing program such as gimp.
  • You can use a web-based free mind map generator such as mindmup. Mindmup is pretty easy to figure out just by playing with it, but click here if you want to view a short tutorial.

As an example to get you started, below you will see the start of mind map for Unit D that was built using mindmup. You can re-create it and build on it, or create a completely new one of your own.

Unit D Example Mind Map
Do a Puzzle!
A puzzle can be a fun way to review unit concepts or terms. We have prepared a Unit A review puzzle for you:



Try Some Practice Questions
The following 5 questions are meant to get you thinking about the Unit D material. Answers are provided below each question, but before you look at the answer, you should really try hard at answering the question yourself. If you have to, review the Unit D lessons.
Question 1

All teapots have the same basic design.



A teapot has a handle, a container for holding the liquid, and a spout. Explain how the design of these three structures in a teapot relates to their function.

The handle is used to hold the teapot while pouring tea into a cup. Because the handle is away from the main part of the teapot, the person’s hand is not burned while holding the hot teapot.
 
The container holds the liquid tea. It varies in size from a single cup to enough for a group of people.
 
The spout directs the tea into the cup. The spout is thin, narrow, and hollow so that a small stream of tea can be poured into a cup. This is better than pouring the hot tea from a big container, which could spill and burn someone.
Question 2

Why is driving a car up an icy hill sometimes difficult?


Explain your answer using the terms applied force and friction.

On an icy hill, only a small amount of friction occurs between the car tires and the road. When friction is reduced, the car can be pulled down the hill easily by gravity so more applied force is required to drive the car up the hill. However, the force of the engine might not be applied fully to the road surface because ice minimizes friction under the tires.
Question 3

The Lion’s Gate Bridge is located in Vancouver, BC.



What type of bridge is the Lion’s Gate Bridge?  List and explain two types of internal forces acting on the Lion’s Gate Bridge.

The Lion’s Gate Bridge is a suspension bridge. Tension in the large wire cables holds up the bridge deck. Compression from the weight of the support towers pushes downward.
Question 4

A product designer is asked by a company to design a reusable coffee mug to sell.



What are three things he or she should consider in this design? Explain your answers.

Sample answers:
 
  • Aesthetics - If people like the appearance of the mug, they will buy it
  • Cost - The materials in the cup must be affordable.
  • Hardness - The cup must be hard to prevent easy breakage yet able to withstand dropping, for example.
  • Resistance to water - The cup should not change when it is exposed to water or the beverage (often coffee).
  • Resistance to heat - The cup should not melt when it is exposed to hot liquids. People should be able to hold the hot cup without being burned.
Question 5

How is a laminated hockey stick made?



Explain two possible advantages of using a laminated hockey stick compared to a pure wood hockey stick.

A laminated hockey stick is made from layers of wood and other materials.

Sample answers for two advantages:

  • A laminated stick is lighter than a pure wooden stick is, making lifting the stick and shooting the puck easier.
  • A laminated stick is stronger than a pure wooden stick is and does not bend and break easily.
  • Laminated sticks are less expensive than pure wooden sticks are.