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Review: Engineering and Design Unit: Lesson 1

Total questions: 33

Worksheet time: 17mins

Name
Class
Date
1.
An engineer proposes a new chemical that could be sprayed from aircraft to slow the rate of burning in a forest fire. What is the next step the engineer is likely to take to develop this solution for fighting forest fires?
a)
Test a number of similar chemicals.
b)
Compare the effectiveness of the new chemical to the current chemical.
c)
Add the chemical to all aircraft spray tanks.
d)
Design a spray system for the chemical.
2.
True or False: Modern life is dependent upon technology. Without engineered tools, scientists could not carry out research.
a)
True
b)
False
3.
True or False: Engineers make use of knowledge gained by scientific investigations.
a)
True
b)
False
4.
___________________generally explore phenomena to develop explanations and engineers generally solve problems.
a)
Students
b)
Scientists
c)
Historians
d)
Engineers
5.
_______________ can be used to represent complex systems and their many interactions.
a)
Maps
b)
Math
c)
Models
d)
Documents
6.
Why do scientists and engineers often use a model of a system to predict the results of interactions, instead of studying the actual system?
a)
Models are harder than experiments.
b)
Models provide a way to focus on parts of the system and to study system interactions on a smaller scale.
7.
True or False Engineers develop or improve technologies to meet people’s needs and wants that change over time.
a)
True
b)
False
8.
__________________is the application of science and mathematics to solve real-life problems.
a)
Engineering
b)
Scientific Method
c)
Criteria
9.
_________________ is any tool, process, or system designed to solve a problem.
a)
Enginnering
b)
Criteria
c)
Technology
d)
Computers
10.
True or False: Engineers need to know how systems work to design solutions so they rely on scientific studies.
a)
True
b)
False
11.
What is NOT an example of how technology has had an impact on the natural world? Select all that apply.
a)
The development of cell phones allows for more frequent communication.
b)
Tree harvesting vehicles accelerated the deforestation of certain parts of the world.
c)
The move toward solar and wind power has lessened the need for burning fossil fuels.
12.
An _________________describes steps that can be used to identify a problem and then propose, test, and optimize a solution to that problem.
a)
engineering design process
b)
enginnering exploration
c)
scientific method
13.
In the engineering design process, the criteria and constraints_______________ for the design to be acceptable.
a)
need to be met
b)
does not need to be met
14.
When you rolled the cart down the ramp, you likely did not consider the air resistance that might affect the cart. You isolated the part you wanted to study to simplify your process. A ________ is a set of interacting parts that work together.
a)
system
b)
technology
c)
engineer
d)
criteria
15.
__________________information, material, or energy added to a system or process
a)
Input
b)
Output
16.
When matter, energy, or information exits a system, it is called an ______________.
a)
Input
b)
Output
17.
Which of these best describes the field of engineering?
a)
It is a tool or process designed to solve a problem.
b)
It is an area of study that relates to space exploration.
c)
It is an area of study that relates to nonliving materials.
18.
Kaseem is taking his bicycle for a ride. His bicycle is a system, and its main purpose is to provide transportation. What is the main input into this system?
a)
The energy needed to push the pedal
b)
The distance traveled
c)
The type of bike he is riding
19.
Kaseem is taking his bicycle for a ride. His bicycle is a system, and its main purpose is to provide transportation. What is the desired output of this system?
a)
The energy needed to push the pedal
b)
The distance traveled
c)
The type of bike he is riding
20.
The engineers have analyzed the results in the table and have chosen a knee pad design to develop. What is the first step to optimize the knee pad design?
a)
Analyze results.
b)
Perform more tests.
c)
Make design changes.
d)

Build a NEW model of the knee pad.

21.

A company is making prototypes for a new computer system. Which of the following statements best describes an advantage of making several different prototypes?

a)

testing at the same time

b)

buying by many users

c)

production in large numbers

22.

For a technology project, Kyle came up with an idea to build a model bridge. According to the engineering design process, which of the following should be Kyle's next step?

a)

construct prototypes

b)

research different designs

c)

gather material to build a bridge

23.

A manufacturer has developed a textured surface for plastic cups. The manufacturer has produced prototypes. Which of the following is the next step in the engineering design process?

a)

market the new textured cups

b)

redesign the textured surface

c)

test and evaluate the prototypes

24.

An engineer suggests using a robotic system to manufacture a particular chemical. Which of the following is most likely the engineer’s reason for making the suggestion?

a)

reducing the cost of materials

b)

reducing workers' exposure to chemicals

c)

increasing the cost of production

25.

An automobile company plans to develop an electric car to sell in urban areas. Which of the following will help the company evaluate the potential market for these cars?

a)

scale models

b)

field tests

c)

consumer surveys

26.

Sarah presented an idea for recycling used tires to an automotive company. If she followed the engineering design process, what was the first step in developing her idea?

a)

identifying a problem to solve

b)

selecting the best solution

c)

building a prototype

27.

A company sent prototypes of a newly designed hair dryer for trial use to 100 homes along with a satisfaction survey. This process is part of which step in the engineering design process?

a)

communicating solutions

b)

evaluating outcomes

c)

researching the problem

28.

You plan to build a solar stove. What criteria would best help you evaluate how well your model works?

a)

location of the test

b)

cost of the model

c)

the time it took to cook food

29.

Your group plans to build a model desalination plant. When should you decide upon the criteria you will use to test your technological design?

a)

after the model is built

b)

after the model is tested

c)

before the model is built

30.

Juan is going to design a kite. After doing research, Juan creates several different designs and selects the one he wants to use. What are the next two steps Juan should do in the design process?

a)

build a prototype and test it

b)

build and finish full-sized kites

c)

patent the design and sell it

31.

Which of the following is a constraint that engineers might consider when designing a new product?

a)

Favorite color

b)

Personal preferences

c)

Available materials

32.

True or False: Testing and evaluating prototypes is an important part of the engineering design process.

a)

False

b)

True

33.

What is the main purpose of building a prototype during the engineering design process?

a)

To advertise the product

b)

To test and improve the design

c)

To sell the product immediately

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