Measuring motion
An object's change in position relative to a reference point
what is motion
a push or pull
what is force?
a force that opposes motion between two surfaces that are in contact
what is friction?
a force of attraction between objects
what is gravity?
The distance traveled divided by the time interval during which the motion occurred.
What is speed?
The SI unit for force
What is a newton
Type of friction that occurs when moving heavy furniture
what is kinetic friction?
Scientist who developed Newton's 3 laws of motion
Who is Newton?
The speed of an object in a particular direction
What is velocity?
the combination of all forces acting on an object.
What is net force?
Substance that reduces friction
What is a lubricant?
Gravitational force increases as what increases?
What is mass?
The rate at which velocity changes over time
What is acceleration?
size and direction
All forces have what?
when a force is applied to an object but does not cause an object to move
what is static friction
Gravitational force decreases as what increases?
What is distance?
objects that change directions
what is centripedal acceleration?
unbalanced force
What kind of force is exerted on a soccer ball?
This type of surface creates more friction
What are rough surfaces?
the amount of matter in an object
What is mass?