Review for 9th grade, Semester 1, final for Science.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Engineer | A person trained and skilled in the design, construction, and use of a system or machine.
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| Invention | A device or process originated after study and experiment.
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| Innovation | A new improvement to an existing device or process.
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| Engineering Design Process | A series of steps used to plan practical solutions to problems.
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| Criteria | The desired features of a product related to its function or purpose.
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| Constraints | Any limitations on the design.
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| Trade-offs | Giving up one desirable trait for another.
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| Prototype | A working model; allows you to test your possible solution.
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| Risk-Benefit Analysis | Compares the negative consequences of a device or design to the positive consequences.
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| Life Cycle Analysis | Evaluation of the materials and energy used for the product's manufacture, operation, use, disposal, etc.
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| System | Group of interacting mechanical parts that work together to accomplish a goal.
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| Input | The needed resources to accomplish a goal in a technological system.
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| Output | The goal of the technological system.
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| Feedback | Information from one step of a cycle that affects a previous step of the cycle in a technological system.
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| Negative Feedback | Feedback that can stop the process occurring in a system.
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| Positive Feedback | When increased output cause the system to make even more output.
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| Technology | The products and process that result from the engineering process.
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| Independent Variable | The factor that is deliberately changed by the experimenter.
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| Dependent Variable | The factor that changes as a result of the experiment.
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| Constants | The factors that are kept the same so they do not affect the results of the experiment.
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| Control Set-up | The comparison group that does not get the independent variable.
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| Bias | Occurs when a scientist's expectations and previous experiences change how the results are viewed.
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| Peer Review | Procedures and results of an experiment are evaluated by scientists in the same field of study before a study is published.
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| Scientific Law | A statement about what happens in nature that seems to be true all the time.
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| Scientific Theory | A explanation of things or events based on knowledge gained from multiple observations and investigations.
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| Motion | A change in an object's position or location relative to a reference point.
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| Speed | The distance an object moves in a given amount of time.
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| Acceleration | The rate at which velocity changes.
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| Force | A push or a pull acting on an object in a certain direction.
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| Weight | Gravitational force exerted on an object.
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| Mass | The measure of the amount of matter in an object.
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| Inertia | Tendency of an object to resist any change in its motion.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
MakStabs
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