Set: ch22 science

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All 21 terms

TermDefinition
forcean action exerted on a body in order to change the body's state of rest or motion; force has magnitude and direction
net forcea single force whose external effects on a rigid body are the same as the effects of several actual forces acting on the body
inertiathe tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object
newtonthe SI unit for force; the force that will increase the speed of a 1 kg mass by 1 m/s each second that the force is applied (symbol, N)
frictiona force that opposes motion between two surfaces that are in contact
gravitya force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases
The law of universal gravitationdescribes the relationship between gravitational force,mass,and distance
net forcea single force whose external effects on a rigid body are the same as the effects of several actual forces acting on the body
balanced forceswhenthe forces on an object produce a net force of 0N ,the figures are balanced
unbalaned forceswhen the net force on an object that is NOT 0N,the force on the object are unbalanced
kinetic frictionthe force that opposes the movement of two surfaces that are in contact and are sliding over each other
static frictionthe force that resists the initiation of sliding motion between two surfaces that are in contact and at rest
frictionstatic ,kinetic,sliding,rolling,flud or air
increasing line
it going up
decreasing line
line that goes down
speedthe distance traveled divided by the time interval during which the motion occurred speed=total distance/total time
motionan object,s change in position relative to a reference point
accelerationthe rate at which velocity changes over time,an object accelerates if its speed,direction,or both change final velocity-starting velocity/time it takes to change velocity
velocitythe speed of an object in a particular direction 600km/n south
if they have the same direction youadd+
if they have the different direction yousubtract-

Set Information

Terms 21
Creator savy202
Created November 4, 2009
Groups None
Subject sceince vocab
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Most Missed Words

  1. inertia the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object - 12 misses
  2. static friction the force that resists the initiation of sliding motion between two surfaces that are in contact and at rest - 11 misses
  3. force an action exerted on a body in order to change the body's state of rest or motion; force has magnitude and direction - 10 misses
  4. friction a force that opposes motion between two surfaces that are in contact - 10 misses
  5. gravity a force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases - 9 misses
  6. The law of universal gravitation describes the relationship between gravitational force,mass,and distance - 7 misses
  7. kinetic friction the force that opposes the movement of two surfaces that are in contact and are sliding over each other - 6 misses