aerodynamic
air resistance
able to move through the air with as little air resistance as possible.
the force of friction on a vehicle as it moves through the air.
axle
blueprint
a bar or shaft on which a wheel turns.
a detailed plan of drawing that shows how something is designed.
constant
cost-effective
a condition that is not changed in a scientific experiment.
able to produce the best results for the least money.
data
drag
information, such as that gathered during an experiment.
force that opposes the forward movement of a vehicle.
dynamics
energy
the part of physics that deals with how things move and the forces that change their motion.
the ability to do work or to make something happen.
force
friction
push or pull.
force that resists movement between two objects that are touching.
gravity
inclined plane
a natural force that draws things toward the earths surface.
a ramp or slanted surface.
inertia
kinetic energy
an objects ability to remain at rest or in motion until a force acts upon it.
energy associated with motion.
laws of motion
lever
three laws, formulated by Sir Isaac Newton, that describe how objects move in relation to the forces acting on them.
a bar or board resting on a support (fulcrum).
mass
momentum
the amount of matter an object has.
the speed or force that a moving object has because of its weight and motion.
potential energy
prototype
stored energy that can be released to become other forms of energy.
an original model or design.
pulley
screw
a grooved wheel with a rope around it.
an inclined plane wound around a cylinder.
simple machine
speed
a machine with few or no moving parts.
a measure of how fast something is moving.
technological design
tension
the process of designing and building products and systems to meet human needs.
the force exerted by a stretched object, such as a spring.
three-view drawing
variable
a diagram, showing top, side, and front views.
an element in an experiment than can be changed.
wedge
weight
two inclined planes put together to form a narrow cutting edge.
a measurement of the force of gravity on an object.
wheel and axle
a simple machine. It consists of asimple machine wheelwheel that turns an axle,axle or an axle that turns a wheel.