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Fundamental physical quantities that cannot be defined in terms of other quantities.
Quantities that are derived from base quantities through mathematical relationships.
Mass is the amount of matter, while weight is the force exerted by gravity on that mass.
They provide a standard measurement system for scientific communication.
The degree to which repeated measurements under unchanged conditions show the same results.
The closeness of a measured value to the true value.
It may fail to detect small changes in the quantity being measured.
A quantity that has both magnitude and direction.
Scalars have only magnitude, while vectors have both magnitude and direction.
An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force.
The product of an object's mass and its velocity.
Energy cannot be created or destroyed, only transformed from one form to another.
The force applied per unit area.
A change in pressure applied to an enclosed fluid is transmitted undiminished throughout the fluid.
The state in which two bodies in contact do not exchange heat.
The amount of heat required to raise the temperature of a unit mass by one degree Celsius.
The change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.
Longitudinal waves oscillate parallel to the direction of wave travel, while transverse waves oscillate perpendicular.
Higher amplitude means greater energy transport by the wave.
Nodes are points of no displacement in a standing wave pattern.