Forces and Motion 1
Forces or moments are _______________ if their effects add together or are opposite but do not completely cancel out
unbalanced
an interaction which, if unbalanced, will change the shape or change the movement of an object
force
contact
Forces or moments are ______________ if they are equal and opposite, so their effects cancel out.
balanced
acting against something
opposite
If all of the forces acting on an object are _____________, then the object will not move.
balanced
decrease in speed
slow down
size
direction
If one or more of the forces acting on an object are __________________, then the object will move.
unbalanced
a bend in the path taken by a moving object
change direction
What is the unit of force
The unit of force is the Newton
The resistance that one surface or object encounters when moving over another is called __________.
friction
the path taken by a moving object, or the line along which a force acts
direction
The force of gravity is always pulling objects toward the center of the Earth. This force is known as an objects _____________.
When you draw a force diagram with balanced forces, make sure the arrows are the same ________ and point in ____________ directions
same
opposite