Matter In Motion Flashcards
the distance traveled divided by the time interval during which the motion occurred.
speed
an objects change in position relative to a reference point.
motion
the speed of and object in a particular distance
velocity
the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change
acceleration
what is the average acceleration calculation?
average acceleration= final velocity- starting velocity over time it takes to change velocity
a push or pull exerted on an object in order to change the motion of the object; force has size and direction
motion
the SI for force
newton
the combination of all of the forces acting on an object
net force
Whats a balanced force?
balanced forces have a zero net force they wont move.
What are unbalanced forces?
an unbalanced force moves
a force that opposes motion between two surfaces that are in contact
friction
what is kinetic friction
friction between moving surfaces
what is static friction
when a force is applied to an object but does not cause the object to move
a force of attraction between objects that is due to their masses
gravity
a measure of the gravitational force exerted on an object ; its value can change with the location of the object in the universe
weight
