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# Physics

Across
A statement about what happens in nature and seems to be true all the time.
a straight line drawn through the center of a group of data points plotted on a scatter plot.
A quantity with a size and direction
the force of gravity
friction opposes the motion of an object, opposite to direction of motion, parallel to sliding surface
The force exerted by a rope or cable attached to an object.
the factors that you are manipulating in your experiment.
Friction of an object at rest, the maximum possible friction force fmax=usN (us=coefficient of static friction). Prevents the motion of an object when a force is applied until some maximum is reached, the force Fs depends on force applied
quantities you are measuring to determine if there is an effect from the independent variable.
The degree of exactness of a measurement.
evidence-based representation of something that is either too difficult or impossible to display directly.
an educated guess
A comparison between an unknown quantity and a standard
a vector, because direction matters. But distance is a scalar.
Down
Describes how well the results of a measurement agree with the "real" value.
digits that carry meaning contributing to its measurement resolution.
Direction of force perpendicular to normal force, it is present in a system not at rest
explains what the world is and what holds it together.
The point at which all variables in a coordinate system have the value of zero.
A push or a pull
a well-substantiated explanation of some aspect of the natural world
Difference between two times
Any motion of a body where its weight is the only force acting upon it.
composite photo showing position of object for several moments in time
A vector that represents the sum of other vectors.
The entire length of an objects path, even if the objects move in any direction.
Rate of change of velocity