Contact and Non contact
What is an external force?
A Force that acts from the outside
Sliding/ Moving
Name 2 examples of tension force? Must be different
Swinging and tug of war etc...
What is Non contact force?
A force that acts on an object without touching it
What is Static friction?
Static friction is The frictional forcethat keeps an object still
1 more example please of tension ( Must be different from last)
Climbing etc....
What is gravity?
A pulling force that keeps us on the ground
what is sliding friction
the frictional froce that slows the movement of two surfaces that slide against ti
1 example of compression force
sitting on a couch etc...
What is contact force?
Any force that uses contact to move an object
Rolling friction?
The frictional force that slows the movement
2 examples of shear force
Cutting paper with scisors
Cutting vegetables with knife etc..
A magnet is a what type of force
a) Push
b) Pull
c) Both
c) both
what do all the three types of friction need to have?
Gravityy
2 examples of a torsion force
Wind up toys turning a doorknob etc....