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15 Cards in this Set

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