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15 Cards in this Set
- Front
- Back
dependent variable
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in an experiment, the variable that the experimenter observes as a result of changing the independent variable
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energy
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the ability, capacity, or capability of a physical system to do work
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derived unit
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unit of measurement that combines fundamental units to measure a physical property
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fundamental quantity
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that quantity that is measured to understand the physical world: distance, mass, time, and temperature
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fundamental units
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the basic units by which fundamental quantities are measured: meter, gram, second, and degree Celsius
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hypothesis (hiy-PAH-thuh-sis)
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a tentative answer or solution to a scientific question or problem that considers observations related to the original question or problem posed; may be framed as a detailed question or statement
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independent variable
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in an experiment, the variable that the experimenter changes
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matter
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anything that occupies space and has mass
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metric system
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a decimal system of measurement by which fundamental quantities are measured in fundamental and derived units
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physical science
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the study of matter and energy and their interactions, which includes the disciplines of physics and chemistry
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scientific method
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investigative process that recognizes that scientific concepts and models are only valid if their predictions agree with experimental results
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significant figure
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the way measured numbers are properly reported; expresses an estimate or margin of error in scientific measurement
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variable
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in an experiment, a factor that is unknown or can change
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viscosity (vihs-KAH-suh-tee)
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a measure of a fluid´s resistance to flow; some fluids are more viscous (have greater resistance to flow) than others
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work
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amount of energy transferred to or from an object (a body or system) as a result of forces acting upon the object (a body or system), causing displacement of the object
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