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44 Cards in this Set
- Front
- Back
GRAVITY
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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 |
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AIR RESISTANCE
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the force or friction on a vehicle as it moves through the air
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LOAD
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an object that requires force to be moved over a distance
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FULCRUM
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the pivot about which a lever turns
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MOTION
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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 |
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PROTOTYPE
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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 |
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MATTER
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anything that takes up space
the material sustance of the universe that has mass and occupies space |
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INERTIA
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Sir Issac Newton's First Law of Motion- an object at rest will remain at rest; an object in motion will remain in motion
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NEWTON
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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
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UNBALANCE
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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
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MODEL
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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 |
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PATENT
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a document granting an inventor sole rights to an invention
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BALANCED FORCE
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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 |
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VARIABLE
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a factor in an experiment that can effect what happens in the experiment
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MOMMENTUM
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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 |
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NEWTON'S 3 LAW
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law states that for every action there is an equal and opposite reaction
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NEWTON'S 2 LAW
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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
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AXLE
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a bar or shaft on which a wheel turns
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TECHNOLOGY
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the inventions that impove the way we live and work
the application of scientific discoveries to parctical use |
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SYSTEM
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a method of way of doing something
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TENSION
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the force exerted by a streched object; such as a string
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POTENTIAL
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stored energy that can be released to become other forms of energy
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ENERGY POSITION
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the location of an object
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PULLEY
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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 |
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ARM
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the beam or bar of a lever
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FORCE
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energy in the form of a push or pull
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VELOCITY
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a measure of both the speed and direction of a moving object
the speed is given duration; calculated by dividing displacement by time |
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KINETIC ENERGY
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the energy of a moving body
energy associated with motion which depends on the mass of the object and its speed |
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INCLINED PLANE
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a simple machine that is a flat surface with one end higher than the other; a ramp
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NEWTON'S 1ST LAW
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object will remain rest or in motion unless it is an unbalance force
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DESIGN
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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) |
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WIEGHT
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heaviness; or a heavy object
how we measure the force of a load of something |
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ENERGY
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the avility of an object of being to do work or to make something happen
the ability to cause change in matter |
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FRICTION
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this will slow down things touching each other
a fprce that opposes motion between two surfaces that are touching |
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ENGINEER
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a person who uses scientific knowledge to solve practical problems
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TRACTION
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a king of friction that allows wheels to turn without skipping
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SIMPLE MACHINE
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a simple devise that does work
this includes the pulley, the wheel, the axle, the lever, the inclined plane, the screw and the wedge |
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WHEEL
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a circular frame or disks arranged to revolve on an axle such as on a vehicle or in a machine
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ACCELERATION
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the rate in which velocity changes
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GEAR
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a toothed wheel that contacts with another toothed part in order to change the speed or direction of transmitted motion
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NET FORCE
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the force that results from combining all the forces exerted on an object
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PHYSICS
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the science of matter and energy and their interactions
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RAMP
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an incline surface
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WEDGE
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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.
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