Nina plays catcher on her softball team. She wants to design a better mitt to catch the ball. She is just beginning the design process. Which step should she do first?
A. build a prototype
B. test her prototype
C. tell her team what she learns
D. make conclusions about solutions
Build a prototype
A real world limit on the solution you are designing is known as a __________.
A. erosion
B. tradeoff
C. constraint
D. criteria
Constraint
Which technology would help a town reduce the air pollution it creates?
A. gas lamps on city streets
B. coal-burning stoves for heat
C. cars that run on electric power
D. automatic sprinklers on the golf courses
cars that run on electric power
How are models used in the engineering design process?
A. Models are lists of needs to be addressed.
B. Models are things that can be tested and analyzed.
C. Models are the final products sold to consumers.
D. Models are tables of data that can be sorted and analyzed.
B.models are things that can be tested and analyzed
Why do scientists follow the design process?
A. to find solutions to problems
B. to understand how Earth formed
C. to practice making measurements
D. to use the same solution for every problem
A. to find solutions to problems
On her way to school every day, Crissy needs to cross a creek that is five feet wide. The solution to her problem must be safe and easy to use and she cannot ever get wet. She can use only a rope and some boards that are ten feet long. She brainstorms four ideas. Which idea meets all of her criteria and constraints?
A. She can build a sailboat.
B. She can swim across the creek.
C. She can tie the boards together to make a bridge.
D. She can tie the rope to a small tree branch and swing across.
C. She can tie the boards together to make a bridge
Why should engineers test their designs?
A. to find ways to improve their designs
B. to make them smaller and more compact
C. to change the design to be more profitable
D. to discover solutions to problems that have not yet occurred
A. to find ways to improve their designs
The desirable features of a solution are known as the ____________.
A. brainstorming
B. criteria
C. erosion
D. constraint
criteria
Sasha plans a test to see how to make a paper airplane fly the farthest. She builds one plane with wings that are 10 cm long, one plane with wings that are 20 cm long and one plane with wings that are 50 cm long. What should Sasha do after she flies each plane?
A. record how far each plane flew
B. remember how far each plane flew
C. tell a friend how far each plane flew
D. take a picture of how far each plane flew
A. record how far each plane flew
Jose and Marla were challenged to design a battery to light a small light bulb. Their batteries are shown in the picture.
Compare the two batteries. Which battery meets the criterion of the challenge, and how could the other battery be improved?
A. Jose’s design worked; Marla should use a different type of nail.
B. Jose’s design worked; Marla should use a different type of wire.
C. Marla’s design worked; Jose should use a different type of fruit.
D. Marla’s design worked; Jose should change the plastic clips to metal.
D. Marlas design worked: Jose should change the plastic clips to metal
Mr. Jackson’s class wants to determine which kind of ball bounces the highest. The students do an experiment using a golf ball, a plastic ball, and a small rubber ball. They drop each ball in the same place from a height of two meters.
Write the letters of the words in the boxes to correctly complete the sentences. Some letters may not be used.
The changed variable in this experiment was the __________.
type of ball
location where the ball is dropped
height the ball bounced
height the ball was dropped from
type of ball
Mr. Jackson’s class wants to determine which kind of ball bounces the highest. The students do an experiment using a golf ball, a plastic ball, and a small rubber ball. They drop each ball in the same place from a height of two meters.
Write the letters of the words in the boxes to correctly complete the sentences. Some letters may not be used.
The __________ and __________ were kept the same.
type of ball
location where the ball is dropped
height the ball bounced
height the ball was dropped from
location and height the ball was dropped from
Thomas notices that his tomato plants wither when they are in high temperature and direct sunlight during the summer. He decides to use the engineering design process to make a sunshade for his tomato plants. How can Thomas test his solution?
A. record the average daily temperature in the area
B. conduct research about tomato plants and weather
C. compare plants without a sunshade with plants with a sunshade
D. measure the amount of water required by tomato plants without sunshades
C. compare plants without sunshade with plants with a sunshade
Engineers test four dishwashers, models A through D. The engineers discover that dishwasher model B does not clean the dishes well. Which is the next step for the engineers?
A. Make and sell the model B dishwasher anyway.
B. Start all over with a brand new design for a dishwasher.
C. Evaluate what is wrong with model B and work to redesign it.
D. Choose a different appliance to make and sell instead of dishwashers.
C. evaluate what is wrong with model B and redesign it
Engineers designed a machine that will decrease air pollution. What is the main purpose of telling others about this machine?
A. to build a prototype
B. to gather data about a problem
C. to keep people from copying the design
D. to help other people solve the same problem
D. to help other people solve the same problem
Which is a true statement about the work of engineers and the work of scientists?
A. Engineers analyze data, and scientists do not.
B. Scientists often work in teams, and engineers do not.
C. Both are interested in understanding the natural world.
D. Both follow a series of steps to find solutions to problems.
D. both follow a series of steps to find solutions to a problem
Every technology has some risks. For example, cars cause some types of air pollution. Which option lists a technology and its risk?
A. light bulbs: wrist injuries
B. cell phones: air pollution
C. dishwasher: risk of disease
D. computer games: less exercise
D. computer games: less exercise
The objects on Maria’s shelves are disorganized and often fall to the floor. She thinks of four ways to solve this problem and numbers her designs 1, 2, 3, and 4. For each design, she builds a prototype and tests it. She records data on how well each design meets her criteria.
Which design best meets Maria’s criteria?
A. design 1
B. design 2
C. design 3
D. design 4
C. design 3
Engineers use a design process to invent or improve machines. What is the first step in this design process?
A. Make a prototype of the design.
B. Identify a need or problem to be solved.
C. Make a graph to show how well the design worked.
D. Keep notes and drawings of the design throughout the process.
B. identify a need or problem to be solved
What would some constraints be when building a birdhouse?
How much to spend, height, location, time
The design criteria for a new artificial heart include measuring the heart’s ability to last for a long time. The table shows results of testing of several models of a new artificial heart. Each model was tested until it showed obvious signs of wear.
Artificial Heart Model
Number of heart beats
A
27,899
B
32,652
C
5,605
D
3,455
Which two models best meet the criterion to last for a long time?
A. models A and B B. models B and C
C. models B and D D. models C and D
A. models A and B
Engineers want to develop a more efficient dishwasher by decreasing the running time and the amount of water used per cycle. They design and test four different dishwasher prototypes. The bar graph shows the results of their tests.
Which model best meets the design criteria?
A. model A
B. model B
C. model C
D. model D
B. model B
The invention of technologies such as cars, buses, trains, and airplanes has changed the way society travels.
Identify two examples of ways that people’s lives have improved as a result of these technologies.
cars and phones
The invention of technologies such as cars, buses, trains, and airplanes has changed the way society travels.
Identify an example of a negative effect of these technologies. Explain your answer.
exercise and pollution
What are some examples of criteria if I asked you to build a bird house?
Safety,Design,Color,Wind resitant.