Set: Force

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All 24 Terms

Term Definition
Force a push or a pull
Newton unit of measure for force, 1 kg M/s/s
net force the combination of all forces acting on an object
unbalanced forces a net force causing a change in an object's motion
balanced forces a zero net force that causes no change in an object's motion
friction the force that two surfaces exert on each other when they rub against each other
strength of friction depends on how hard the surfaces push together and the types of surfaces
static friction friction that acts on object that are not moving
sliding friction occurs when two solid surfaces slide over each other
rolling friction occurs when an object rolls across a surface
Fluid friction occurs when a solid object moves through a fluid
gravity a force that pulls masses toward each other
factors affecting gravity mass and distance, greater mass or less distance = more gravity
weight the force of gravity acting on a mass
free fall when the only force acting on an object
air resistance the friction of air against a moving object
terminal velocity the greatest velocity a falling object reaches
newton's first law a object's motion does not change unless acted upon by an unbalanced force
inertia the tendency of an object to resist change in motion
Newton's second law Force = mass times acceleration
Newton's third law for every action there is an equal but opposite reaction
momentum equal mass times velocity
conservation of momentum the total momentum of any group of objects remains the same
satellite an object that orbits another object in space

Set Information

Terms 24
Creator hhafele
Created October 28, 2008
Groups None
Subject physics
Access Anyone
Edit Creator Only

Description

Support for Chapter 2

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Most Missed Words

  1. factors affecting gravity → mass and distance, greater mass or less distance = more gravity - 6 misses
  2. Newton → unit of measure for force, 1 kg M/s/s - 4 misses
  3. strength of friction → depends on how hard the surfaces push together and the types of surfaces - 4 misses
  4. momentum → equal mass times velocity - 3 misses
  5. balanced forces → a zero net force that causes no change in an object's motion - 3 misses
  6. Newton's second law → Force = mass times acceleration - 3 misses
  7. Newton's third law → for every action there is an equal but opposite reaction - 3 misses