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- California
- Squaw Valley Academy
- Physics
- Hancock
- Chapter One Vocabulary

Cheyenne B.

Physics

A branch of science that involves the study of the physical world: energy, matter, and how they are related.

SI Units

An adaptation of the metric system that all scientists use

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Dimensional Analysis

A method of treating units as algabraic quantities that can be cancelled to end up with the right units. This can also be used for conversion factors.

Significant Digits

The valid number of digits in a measurement. When you preform an arthimetic operation, the result can never be more precise than the least precise measurement.

Scientific Method

Making observations, doing experiments, and creating models to explain the results.

Hypothesis

An educated guess on the outcome of an experiment.

Scientific Law

A rule of nature that sums up related observations to describe a pattern in nature.

Scientific Theory

An explanation based on many observations supported by experimental results.

Measurement

A comparison between an unknown quantity and a standard.

Precision

The degree of exactness of a measurement.

Accuracy

How well the results of a measurement agree with the real value.

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Independent Variable

The factor that is changed or manipulated during the experiment.

Dependent Variable

The factor that depends on the independent variable.

Line of Best Fit

A line drawn as close to the data points as possible.

Linear Relationship

A straight line that fits the y=mx+b equation.

Quadratic relationship

A non straight line that fits the equation y=ax^2+bx+c

Inverse Relationship

A non straight line that fits the equation y=a/x

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