Engineering
Applying science and mathematics to solve real-world problems is called what?
Engineering
What is the factor that a scientist measures in an experiment called?
The dependent variable
What is one important step after creating a design?
Testing and evaluating the design or material
What does a risk-benefit analysis compare?
Possible negative effects and possible positive effects of a decision.
What is a testable idea or explanation that leads to an investigation called
A hyothesis
What kind of professional uses science and mathematics to design solutions to problems?
An engineer
What is the factor that a scientist deliberately changes called?
The independent variable
Why might engineers test more than one version of a design?
They can learn about its properties, performance, and limits.
In a risk-benefit analysis, what is a benefit?
A possible positive effect or advantage.
What is technology
The application of science and mathematics to solve problems, meet society’s needs, and improve quality of life.
A team designs a water filter to help a community access clean water. What field are they using?
Engineering
In a test of how light affects plant growth, what could be the dependent variable?
Plant growth, such as height.
Why might engineers test more than one version of a design?
To compare results and find which design works best.
In a risk-benefit analysis, what is a risk?
A possible negative effect or harm
What should a hypothesis be able to do?
It should be testable through an investigation.
Why do engineers identify the problem before designing a solution?
To understand what needs to be solved and guide the design.
A student changes the amount of water given to plants and measures their height. Identify the independent and dependent variables.
Independent variable: amount of water. Dependent variable: plant height.
A prototype breaks during testing. What is a useful next step in the design process?
Examine the test results, revise the design, and test it again.
A new technology saves time but uses more energy. Identify one possible benefit and one possible risk.
Benefit: saves time. Risk: uses more energy
A student predicts that warmer water will dissolve sugar faster. Why is this a testable hypothesis?
The student can compare how quickly sugar dissolves in water at different temperatures.
Engineers design a bridge that must carry traffic while staying within a budget. Name two limits, or constraints, they may need to consider.
Bridge strength
safety, materials, cost, or construction space.
How can test results help engineers improve a solution?
So the results show whether the change in that variable caused the measured effect.
How can test results help engineers improve a solution?
Results show what works, what needs improvement, and whether the design meets its goals.
Why should engineers consider possible negative effects as well as positive effects before choosing a solution?
Considering both helps engineers make informed decisions and reduce potential harm.
How can technology help meet society’s needs and improve quality of life?
Technology can provide solutions to problems and help people meet everyday needs.