Studied by 6 people
do not use for welsh or IB World Religions (SL)
Velocity
the speed and direction of a moving object
Force
a push or pull
Net force
combination of all forces acting on an object
Balanced forces
two or more forces whose effects cancel each other out and do not change the motion of an object
Unbalanced forces
two or more forces acting on an object that do not cancel, and cause the object to accelerate
Newton’s first law of motion
states that if the net force acting on an object is zero, the object will remain at rest or move in a straight line with a constant speed
Friction
force that acts to opposite sliding between two surfaces that are touching
Acceleration
the change in velocity divided by the time over which the change occurred
Newton’s second law of motion
states that an object acted upon by a net force will accelerate in the direction of the force, and the acceleration equals the net force divided by the objects’s mass
Weight
gravitational force between an object and earth
Center of mass
point in a object that moves as if all of the objects were concentrated at that point
Newton’s third law of motion
states that forces always act in equal but opposite pairs
Gravity
a force that exists between any two objects that have mass
Note 
Flashcard (50)