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44 Cards in this Set

  • Front
  • Back
GRAVITY
a force that pulls objects toward each other

the force of attraction between all mass in the universe, including the attraction of the earth's mass for bodies near its surface
AIR RESISTANCE
the force or friction on a vehicle as it moves through the air
LOAD
an object that requires force to be moved over a distance
FULCRUM
the pivot about which a lever turns
MOTION
a change of position of one body in respect to another body

a change in the position or place of something over time comparison to a reference point
PROTOTYPE
an original pattern or model; a typical example

the first model of a product which is used as a pattern for making more of that product
MATTER
anything that takes up space

the material sustance of the universe that has mass and occupies space
INERTIA
Sir Issac Newton's First Law of Motion- an object at rest will remain at rest; an object in motion will remain in motion
NEWTON
a unit of force that equals to the force that imparts an acceleration of 1 m/se/sec to a mass of 1 kilometer; equal to 1000,000 dynes
UNBALANCE
occurs when the forces acting on an object are not equal; therefore one force is greater than the other which causes an object's speed or direction to change
MODEL
a drawing a physical object or a plan that stands for a real thing

a smaller object built to represent the detail of larger objects
PATENT
a document granting an inventor sole rights to an invention
BALANCED FORCE
when the forces on an object produce a net force of zero

a force on a body that are equal in size and opposite in direction and so not change the motion of the body
VARIABLE
a factor in an experiment that can effect what happens in the experiment
MOMMENTUM
a measurement of the motion of something
this is equal to the product of the moving objects mass times its velocity

force or speed of movement; impetus, as of a physical object or course of events
NEWTON'S 3 LAW
law states that for every action there is an equal and opposite reaction
NEWTON'S 2 LAW
law states that acceleration is directly proportional to force; mass is opposite protentional to acceleration; if mass is increased then acceleration is drecreased; if mass is decreased then acceleration is increased
AXLE
a bar or shaft on which a wheel turns
TECHNOLOGY
the inventions that impove the way we live and work

the application of scientific discoveries to parctical use
SYSTEM
a method of way of doing something
TENSION
the force exerted by a streched object; such as a string
POTENTIAL
stored energy that can be released to become other forms of energy
ENERGY POSITION
the location of an object
PULLEY
a simple machine that has a wheel over which pe or chains are pulled

a simple machine that uses a rope and wheels to lift heavy objects
ARM
the beam or bar of a lever
FORCE
energy in the form of a push or pull
VELOCITY
a measure of both the speed and direction of a moving object

the speed is given duration; calculated by dividing displacement by time
KINETIC ENERGY
the energy of a moving body

energy associated with motion which depends on the mass of the object and its speed
INCLINED PLANE
a simple machine that is a flat surface with one end higher than the other; a ramp
NEWTON'S 1ST LAW
object will remain rest or in motion unless it is an unbalance force
DESIGN
a perliminary sketch indicating the plan for something

the act of workin out the form of something (as by making a sketch or outline or plan)
WIEGHT
heaviness; or a heavy object

how we measure the force of a load of something
ENERGY
the avility of an object of being to do work or to make something happen

the ability to cause change in matter
FRICTION
this will slow down things touching each other
a fprce that opposes motion between two surfaces that are touching
ENGINEER
a person who uses scientific knowledge to solve practical problems
TRACTION
a king of friction that allows wheels to turn without skipping
SIMPLE MACHINE
a simple devise that does work

this includes the pulley, the wheel, the axle, the lever, the inclined plane, the screw and the wedge
WHEEL
a circular frame or disks arranged to revolve on an axle such as on a vehicle or in a machine
ACCELERATION
the rate in which velocity changes
GEAR
a toothed wheel that contacts with another toothed part in order to change the speed or direction of transmitted motion
NET FORCE
the force that results from combining all the forces exerted on an object
PHYSICS
the science of matter and energy and their interactions
RAMP
an incline surface
WEDGE
is a triangular shaped tool, a compound and portable inclined plane, and one of the six classical simple machines. It can be used to separate two objects or portions of an object, lift an object, or hold an object in place.