Conceptual Physics 03: Linear Motion and Bridge Terms
Terms in this set (41)
The rate at which velocity is changing. The change may be in magnitude, direction or both.
Path distance divided by time interval.
the time that has passed since the beginning of an event.
Motion under the influence of gravity, alone
Speed at any instant of time
In physics, how fast something happens, or how much something changes per unit time.
Regarded in relation to something else. Depends on point of view, or frame of reference
How fast something is moving. The path distance moved per unit time. The magnitude of the velocity vector.
Speed with a specification of its direction of motion.
any quantity that is described by magnitude alone, without direction
Any quantity that is described by magnitude and direction
The total "path" length traveled, regardless of direction
The distance which seperates the ending point and starting point of a "path", inclusive of direction
Constant speed with constant direction. ("Constant speed in a straight line path")
an area completely devoid of matter, and therefore no air resistance
the force that accelerates a body toward the center of the Earth at a rate of 10 m/s/s (10 meters per second squared)
the substructure at the end of a bridge span whereon the bridge's superstructure rests. The "legs" or "feet" of a bridge
forces which are applied to a structure. The weight a structure must hold
The foundation and surface of a road
Maintenance, including tests, measurements, adjustments, and parts replacement, performed specifically to prevent faults from occurring.
the spreading out of a force over a large area so that one spot doesn't bear the brunt of the concentrated force
the movement of forces from an area of weakness to an area of strength that is designed to handle the force
the rate of change of position in which the same distance is traveled each second
A force that pushes on or squeezes a material.
The percentage of the input work that is converted to output work
triangular framework used to span or support
What type of quantity is speed
What type of quantity is velocity
What type of quantity is displacement
What type of quantity is distance
What can never be larger than the distance traveled
meters per second (m/s)
unit for speed
What tells you the instantaneous speed of a car?
An instantaneous speed of the vector quantity of velocity is
Acceleration was formulated by Galileo based on his experiments with
When there is no air resistance
When do all objects fall at the same unchanging acceleration
Objects in free fall acceleration at a rate of
When in free fall replace acceleration with this that is equal to 10 m/s
How long does an object fall the first second of the fall
An object can accelerate while traveling at constant speed but not at constant _________________. This is because acceleration is a measure of the change in _____________ over time. Therefore, at a constant speed (meaning no change in the magnitude of the velocity) an object could be changing its direction, and thus, accelerating.
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