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Unit 1 Vocab
Important vocabulary to know from Unit 1.
Term | Definition |
---|---|
Independent variable | The effect of this factor is tested in an experiment. |
Dependent variable | We measure how this factor responds to changes made in an experiment. |
Controlled variables (constants) | These factors in an experiment are made to stay the same trial after trial. |
Best fit line | It represents the average of the data on a graph. |
Speed | The distance an object covers for every unit of time |
Time interval | A way to think of time that indicates "how much time" |
Experiment | A way to test an idea. |
Prediction | A statement that makes a specific guess about what the result of an experiment will be. |
Data | The observations, in the form of words or numbers, pulled from an experiment. |
Conclusion | The final say about the results of an experiment, it states whether the hypothesis can be supported. |
Measurement | A determination of amount of something. |
Distance | The amount of space between two points. |
Metric System | A system of measuring that includes units such as meters, milliliters, grams, and kilograms. |
English system | A system of measuring that includes units such as pounds, ounces, cups, gallons, and feet. |
Kilo- | In the metric system, a prefix that means 1000 times larger the base unit. |
Milli- | In the metric system, a prefix that stands for 1000 times smaller than the base unit. |
Centi- | In the metric system, a prefix that stands for 100 times smaller than the base unit. |
Base unit | In the metric system, it is what prefixes are attached to. Examples are meter, liter, and gram. |
meter | The base unit in the metric system for length. |
liter | The base unit in the metric system for volume. |
gram | The base unit in the metric system for mass. |
Clock reading | A way to think of time that indicates "what time it is" |
Reaction time | The time it takes a person to respond to sensing (see/feel/hear/smell/taste) something. |
Accuracy | How close a measurement is to the true, accepted value. |
Precision | Describes how close together repeated measurements or events are to each other. |
Variable | Any factor that could effect an experiment. |
Position | The location of an object, measured in units of length. |
Hypothesis | Any idea someone has about the answer to a question. |
Trial | One round of running an experiment. |