Shared Flashcard Set

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Competency 30 Physical Science
TExES EC-6 Generalist Test
19
Education
Professional
11/02/2010

Additional Education Flashcards

 


 

Cards

Term
force
Definition
  • a push or pull on an object causing it to move, speed up, slow down, stop, or change direction
  • can be constant speed or accelerate
  • weight is also known as this
Term
universal forces
Definition
gravitational, electrical, and magnetic are 3 types of...
Term
gravitational
Definition
  • this force pulls any 2 objects toward one another
  • example would be: stopping a swing from swinging
Term
weight
Definition
  • an object has this because the force of gravity pulls down on the object
  • a spring scale is used to measure this...
Term
Newtons 1st Law
Definition
  • object at rest will remain at rest unless acted upon by force
  • object in motion will remain at the same speed and direction unless acted by an outside force
  • also known as inertia
Term
gravity
Definition
  • a force that causes something to to move
  • it pulls objects down or
  • pulls 2 objects towards one another
Term
electrical
Definition
  • this force pull or push forces that exists around charged particles
  • like charges will repel - positive/positive
  • unlike charges will attract - positive/negative
Term
magnetic
Definition
this force attracts iron and steel
Term
repel
Definition
north and north poles close together will
Term
attract
Definition
north and south poles close together will...
Term
work
Definition
  • the result of a force moving an object
  • more gravity, more force will result in more of this to move an object
  • less gravity, less force will result in less of this to move an object
  • it is what is needed to move an object
Term
simple machines
Definition

their primary job is to make work easier

examples include: inclined plane, wedge, pulley, wheel and axle, lever, screw

Term
constant
Definition
motion that does not change and is graphed with a straight line
Term
friction
Definition
  • slows the motion of moving objects
  • produces heat energy like rubbing your hand together
Term
kinetic energy
Definition

energy of motion or moving

examples:

  • pushing a toy car down a ramp
  • a child going down a slide
Term
potential energy
Definition

stored energy such as a vehicle parked in the garage

other examples include:

  • a toy car on the top of a ramp
  • a book placed near the end of a table
Term
kinetic energy
Definition

loss of height increases this type of energy

example: if a car on a ramp starts to roll, the car will begin to move faster

Term
Newtons 3rd Law
Definition
for every action, there is an equal and opposite reaction
Term
Newton's 2nd Law
Definition
the greater the mass of the mass of the object being accelerated, the greater the amount of force is need to accelerate the object
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