Worksheets3.10 How Do Engineers Improve Materials?
Total questions: 10
Worksheet time: 5mins
Building a shelter in the woods is an example of
a problem with different solutions.
a constraint that limits some options.
the properties you want to have.
the materials that you will use.
Not having any nails would be an example of a ____ when building a shelter.
criteria
problem
constraint
material
Which of the following best defines criteria?
the properties that you want
the problem you need to solve
the material that you have
the limit to certain things
When engineers begin designing a tool, they first must
identify the constraints.
define the problem.
choose the best material.
identify the criteria.
Which of the following is an example of a constraint when designing a tool?
the material doesn’t rust
the material is easy to clean
the material is expensive
all of these
________ can help narrow down the choice of materials for a specific job.
Both criteria and constraints
Criteria but not constraints
Not criteria but constraints
Neither criteria or constraints
Engineer invent completely new materials by
mixing known materials.
making materials lighter.
rearranging particles.
identify certain properties.
Which of the following was created by rearranging particles to create a new material?
Aluminum Foil
Carbon Fiber
Stainless Steel
all of these
An engineer has to test different ways of making a new material because sometimes a material
is expensive to make.
is difficult to make.
has unwanted properties.
all of these
Carbon fiber is a good material for bikes because it is strong and_____.
lightweight
not expensive
easy to clean
does not rust
