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vehicles set 1

QuestionAnswer
coast To move without being continuously pushed or pulled
chassis The frame and wheels of a vehicle
axles Round shafts that connect the opposing wheels of a car.
bearings Structures trhat help parts move freely.
motion A change in the position of an object over time.
speed A measure of how fast an object is traveling
force A push or pull.
propulsion force A push or pull that causes an object to move.
gravity The force of a attraction between two objects
reference point An object or location with which position of a second object is compared over time to determine if the second object is moving
veer A change of direction or course
baseline a specific value that can serve as a basis for comparison
iteration a repetition that attempts to improve on a process or product
iterate to perform repetitions to improve on a process or product
acceleration A change over time in the speed, the direction, or the speed and direction of motion
friction A force that opposes motion
system A set of parts so related or interconnected that they work as a whole
subsystem a system within a system that has its own function
lubrication a substance between two surfaces to reduce friction
fair test a test in which only one factor (variable) is changed and all the other conditions are kept the same
scale the ration of the measurements in a representation or a model of an object to the actual object
velocity An objects speed and direction
elapsed time The time it takes to travel between a starting point and an ending point
magnitude greatness or extent of size
net force the overall force on an object, when all the individual forces acting one eachother are added together
balanced force forces opposite in direction and equal in magnitude;balanced forces have a net force of zero
unbalanced force forces that do not produce a net force of zero
normal force the force that comes from the surface on which an object is locaed
frame of reference the view from which you judge the motion of another object
qualitative data information describing the qualities of objects obsrved, but not measured
quantitative data information based on measurement or counting
design engineer someone who designs things
criteria goals that must be satisfied to be able to succesfully achieve a challenge
Which variable is plotted on the "x" axis? the time
Which variable is plotted on the "y" axis? the distance
what is a design change? the way the car is made/put together (changing the wheels)
What is a construction change? how a car is assembled (making one axel longer than other)
what is postive/negative acceleration? Postive: speeding up Negative: slowing down
What are the basic components of a coaster car? bearings, axels, chassis
What are some metric unit of measurements? centimeters meters kilometers
Created by: supersage