PLTW EES FINAL STUDY GUIDE

Front

The study of values, issues, and decisions that are involved with the work of engineers is known as:

Back

engineering ethics.

Front

The one factor that a scientist changes during an experiment. (It affects the results of the experiment). (10-07 Act. 1.3.2 Experimental)

Back

Independent Variable

Front

The variable that is measured. It is the result of the experiment. (10-07 Act. 1.3.2 Experimental)

Back

Dependent Variable

Front

The factors stay the same throughout the experiment. (10-07 Act. 1.3.2 Experimental)

Back

Constant

Front

What is the independent variable in Ben's experiment with paper helicopters?

Back

Wing Length

Front

What is the dependent variable in Ben's experiment with paper helicopters?

Back

Amount of time it takes the helicopter to hit the floor

Front

What is the dependent variable in Cindy's experiment on how sunlight affects plant growth?

Back

The growth of the plant

Front

Based on the tensile test graph, B represents the _ of the material.

Back

fracture point

Front

A "complete recovery" occurs during this phase when the material regains its original length when the stress is removed:

Back

elastic deformation.

Front

After these points are exceeded even if the forces are removed immediately the material does not regain its original properties during this phase:

Back

flow region.