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48 Cards in this Set

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  • Back
A property of matter equal to the measure of an object's resistance to changes in either the speed or direction of its motion. The mass of an object is not dependent on gravity and therefore is different from but proportional to its weight.
a measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe
The amount of space occupied by a three-dimensional object or region of space, expressed in cubic units.
The mass per unit volume of a substance at a specified pressure and temperature.
the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction
an action exerted on an object which may change the object's state of rest or motion; force has magnitude and direction (vector quantity)
A vector quantity whose magnitude is a body's speed and whose direction is the body's direction of motion.
The rate or a measure of the rate of motion; The magnitude of a velocity.
the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change
Something that has mass and exists as a solid, liquid, gas, or plasma.
potential energy
the energy associated with an object becayse of the position, shape, or condition of the object
kinetic energy
the energy of an object that is due to the object's motion
a description of how close a measurment is to the correct or accepted value of the quantity measured
the degree of exactness of a measurement
The difference, especially the absolute difference, between one number in a set and the mean of the set.
scalar quantity
has direction only
vector quantity
has magnitude and direction
A force that resists the relative motion or tendency to such motion of two bodies in contact.
vector that represents the sum of two or more vectors
in physics, the state in which the net force on an object is zero
net force
a single force whose external effects on a rigid body are the same as the effects of several actual forces acting on the body
simple harmonic motion
vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium
the maximum displacement from equilibrium
the time that it takes a complete cycle to occur
the number of cycles or vibrations per unit of time
a physical environment through which a disturbance can travel
mechanical wave
a wave that requires a medium through which to pass through
transverse wave
a wave whose particles vibrate perpendicularly to the direction the wave is traveling
the highest point about the equilibrium position
the lowest point below the equilibrium position
the distance between two adjacent similar points of a wave, such as froim crest to crest or from trough to trough
longitudinal wave
a wave whose particles vibrate parallel to the direction the wave is traveling
constructive interference
a superposition of two or more waves in which individual displacements on the same side of the equilibrium position are added together to form the resultant wave
destructive interference
a superposition of two or more waves in which individual displacements on opposite sides of the equilibrium position are added together to form the resultant wave
standing wave
a wave pattern that results when two waves of the same frequency, wavelength, and amplitude travel in opposite directions and interfere
a point in a stanging wave that maintains zero displacement
a point in a standing wave, halfway between two nodes, at which the largest displacement occurs
the region of a longitudinal wave in which the density and pressure are at a maximum
the region of a longitudinal wave in which the desity and pressure are at a minimum
a measure of how high or low a sound is perceived to be, depending on the frequency of the sound wave
Doppler effect
an observed change in frequency when there is relative motion between the source of waves and an observer (named for the Austrian physicist Christian Doppler)
the rate at which energy flows through a unit area perpendicular to the direction of wave motion
a dimensionless unit tht describes the ratio of two intensities of sound; the threshold of hearing is commonly used as the reference intensity
a phenomenon that occurs when the frequency of a force applied to a system matches the natural frequency of vibration of the system, resulting in a large amplitude of vibration
fundamental frequency
the lowest frequency of vibration of a standing wave
harmonic series
a series of frequencies that includes the fundamental frequency and integral multiples of the fundamental frequency
the musical quality of a tone resulting form the combination of harmonics present at different intensities
the periodic variation in the amplitude of a wave that is the superposition of two waves of slightly different frequencies