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40 Cards in this Set

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  • Back
Quantities in physics, such as mass, volume, and speed, which are fully described by magnitude alone
The horizonal axis on a graph on which the independent variable is plotted.
A vector quantity which describes the rate at which an object changes its position. Also referred to as "speed with direction."
A scalar quantity which refers to "how much ground an object has covered" during its motion.
The rate at which an object changes its velocity, meaning there is a change in speed, direction, or both.
A point, assumed to be stationary, used to describe motion.
frame of reference
Refers to the duration of an action.
The vertical axis on a graph on which the dependent variable is plotted.
A scalar quantity which refers to "how fast an object is moving."
Refers to the way position changes relative to a starting point. May be indicated by the terms: north, south, positive, negative, up, or down.
A vector quanity which refers to how far out of place an object is, or the object's change in position.
A quantity that has magnitude and direction.
Refers to where an object is.
The degree of exactness with which an operation is performed or a measurement stated.
Freedom from mistake or error; degree of conformity of a measure to a standard or a true value.
The accepted measurement system of the scientific community, based on the meter, the kilogram, and the second.
Standar system of measurement used in daily activities in the United States.
The speed of an object at a specific moment.
instantaneous speed
The factor in an experiment that the researcher chooses to vary at specific intervals; is plotted on the x-axis.
independent variable
The total distance traveled divided by the total time of travel.
average speed
Refers to the degree of inclination or steepness of a line.
The factor whose value changes a the result of a change in the independent variable and is plotted on the y-axis.
dependent variable
Refers to size and is expressed as a numerical value.
Total displacement divided by the time interval.
average velocity
The velocity of an object at a specific moment.
instantaneous velocity
Type of motion that describes an object that is not accelerating.
constant velocity
A speed that does not change, such as a steady speed.
constant speed
Acceleration of an object a particular moment.
instantaneous acceleration
Type of motion that describes the steady change in velocity over time.
constant velocity
A simplified description of a physical system intended to capture the essential aspects of the system in a sufficiently simple form.
An assumption to be tested; a statement of a problem to be solved, expressed as a question.
A plausible or scientifically acceptable general principle or body of principles offered to explain phenomena.
A specific measure of quantity (as of length, time, heat or value) used as a standard of measurement.
An act of recognizing and noting a fact or occurrence; often involving measurement with instruments.
An operation carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis, or to illustrate a known law.
A statement of an order or relation of phenomena that so far as is known is invariable under the given conditions.
Set up and established by authority as a rule for the measure of quanity, weight, extent, value or quality.
Used to check, test or verify experiemnts; usually not itself manipulated during the experiment.
Something invariable or unchanging.
A falling object which experiences no friction is in this type of motion and accelerates at a rate of 9.8 m/s2.