Physics

The rougher the surface, The faster an object will travel over the surface

True

Friction is a force that acts in the _______ direction of movement

opposite

__________friction is the restrictive force that need to overcome to ___________

Static : set in motion

_______ friction is the resistive force that is acting when a object is ____

Kinetic : moving.

______________ friction is always larger than _______________ friction. 

static : kinetic

To determine the normal force strength Fn, you need to determine the ___________ of the object. 

weight

If an object is __________________ an applied force must be acting that is _________ than the _________friction maximum to set an object in motion.  

At rest; greater

If an object is _____________________ an applied force is ________________ the _________ frictional force. 

accelerating ; greater than ; kenetic

If an object is ______________________ the forces are ______________.

constant ; balanced