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Vehicles in Motion Word Wall
Motion and Forces
35
Science
7th Grade
12/13/2015

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Term
axel
Definition
Round shafts that connect the opposing wheels of a car.
Term
bearings
Definition
Structures that help parts move freely
Term
chassis
Definition
The frame and wheels of a vehicle
Term
coast
Definition
To move without being continuously pushed or pulled.
Term
fair test
Definition
Changing only one variable and keeping all other conditions the same.
Term
force
Definition
A push or a pull
Term
friction
Definition
A force that opposes motion
Term
gravity
Definition
The force of attraction between objects. On Earth, it
pulls objects downward toward Earth’s center
Term
motion
Definition
A change in the position of an object over time.
Term
propulsion force
Definition
A push or a pull that causes an object to move. For our vehicle's first iteration, it was gravity.
Term
qualitative data
Definition
Information describing the characteristics of objects observed, but not measured.
Term
quantitative data
Definition
Information based on measurements or counting
Term
reference point
Definition
An object or location with which the position of a second
object is compared over time to determine if the second object is moving.
Term
speed
Definition
A measure of how fast an object is traveling.
Term
veer
Definition
A change in direction or course
Term
air resistance
Definition
The opposing push that resists the movement of an
object through air
Term
center of mass
Definition
An imaginary point on
or near an object around which the
object’s matter is equally distributed.
Term
claim
Definition
A statement of what you
understand or a conclusion that you
have reached from an investigation or
set of investigations.
Term
collaborate
Definition
To work together
Term
constraints
Definition
The factors that limit how
you can solve a problem.
Term
control variables
Definition
In an experiment, the
variables that are kept constant (not
changed).
Term
criteria
Definition
Goals that must be satisfied
to be able to successfully achieve a
challenge
Term
dependent (responding) variables
Definition
In an experiment, the variables whose
values are measured. Scientists
measure how these variables
respond to changes they make in a
manipulated variable.
Term
distribution
Definition
The spread of data.
Term
evidence
Definition
The data collected during
investigations and trends in that data.
Term
independent (manipulated) variable
Definition
In an experiment, the variable that the
scientist intentionally changes.
Term
interpret
Definition
To find the meaning of
something.
Term
iteration
Definition
A repetition that attempts to
improve on a process or product.
Term
trend
Definition
A pattern or a tendency.
Term
variable
Definition
A quantity whose value may
change (vary) over the course of an
experiment.
Term
Procedure
Definition
The steps one follows.
Term
structure
Definition
This involves the vehicle's frame and parts, how the
parts are joined together to make up a whole car, and how the parts interact. It is something you can see when the car is at rest.
Term
Performance
Definition
This is what you observe when the car is moving like how straight it goes or how fast.
Term
mechanism
Definition
The working parts of a device that allow it to run.
Each mechanism has a function, or a purpose like gears or propellers.
Term
baseline
Definition
A specific value or values that can serve as a basis for comparison.
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