Newton's Laws of Motion
Terms in this set (50)
If an object is not moving, it will not start moving by itself. If an object is moving, it will not stop or change direction unless
something pushes it.
Objects will move farther and faster when they are pushed harder. F=ma
When an object is pushed in one direction, there is always a resistance of the same size in the opposite direction.
law of conservation of momentum
If a group of objects applies forces only on each other, their total momentum does not change.
the product of a moving object's mass and velocity
the tendency of an object to resist a change in its motion.
acceleration toward the center of a curved path.
a force that moves an object in the direction of the center of a curved path
a force that pulls two objects toward each other
The force of gravity on an object
A push or pull exerted on an object
Forces that produce a nonzero net force, which changes an objects motion
The distance an object travels per unit of time
The overall force on an object when all the individual forces acting on it are added together
Stored energy that results from the position or shape of an object
The force that one surface exerts on another when the two surfaces rub against each other
Speed in a given direction
A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second
Equal forces acting on an object in opposite directions
Energy that an object has due to its motion
The state in which one object's distance from another is changing
The rate at which velocity changes
Newtons First Law of Motion "An object at rest will remain at rest, and an object moving at a constant velocity will continue moving at a constant velocity, unless it is acted upon by an unbalanced force."
Equation of Force, Mass, and Acceleration
Netforce/ Mass N and kg*m/s^2 The same unit of measurement
How you can use Newtons Second Law to find force
Increase the Acceleration of an Object Increase the force, or decrease the mass
Newtons Third Law of Motion
"If one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object."
The name often given to the force exerted by the first object on a second object
The name often given to the force exerted by the second object back on the first object
Equal and Opposite Reactions
The action and reaction forces in any situation will always be this
Law of Conservation of Mass
"The total momentum of any group of objects remains the same, or is conserved, unless outside forces acts on the objects"
force that opposes motion, or resistance caused when two surfaces touch or rub together
energy an object has due to its motion
unit of work or energy
result of a force moving an object over a distance
The distance traveled over a certain period of time
a force that resists motion as two things slide across each other
resistance of motion caused by a round object rolling across another object
a force that resists motion of an object due to a liquid or gas
Two objects not in motion due to their contact
fluid a liquid or a gas.
A fixed point that you may use to determine if something is moving.
the location of that place or object
overall force acting on an object when all the forces are combined
a situation in which two objects in close contact exchange energy and momentum
3 things that frictional force depends on
surface roughness or smoothness, motion of surfaces, and amount of force pressing the objects together
friction of an object moving through the air
friction of objects that are not moving
three types of moving friction
sliding, rolling, and fluid
distance and direction between starting and ending positions