Experimental Design and Measurement Concepts

Front

What is a physical model?

Back

A representation of an object or system that can be physically manipulated or observed, such as a model airplane.

Front

What is a constant in an experiment?

Back

The part of the experiment that stays the same to ensure that the results are due to the independent variable.

Front

What is a dependent variable?

Back

The variable that is measured to observe the effect of changes in the independent variable.

Front

On which axis is the independent variable plotted?

Back

The x axis.

Front

What unit is used to measure length?

Back

Meter.

Front

What is an independent variable?

Back

The variable that is intentionally changed by the experimenter to observe its effect on the dependent variable.

Front

What is the purpose of a control in an experiment?

Back

To provide a standard for comparison and ensure that the results are due to the independent variable.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.

Front

What is a hypothesis?

Back

A testable prediction about the relationship between variables in an experiment.

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.