science unit 2 Flashcards
win
if u travel to the moon does ur body mass change
no the amont of matter in u body has not changes
if travelled to the moon would ur weight change
yes the force of gravity on earth is 6x stronger then the force of gravity on the moon
what is the metric unit for force and who is it named after
the metric unit for force is the newton named sir issac newton
if gravity changes does the mass of an object change
no
does the weight of an object change if gravity changes
yes
what is the metric unit for change
newton
what are the 2 catagories of force with examples
contact force [a ball hitting a racket] and action at a distance [gravity]
what force causes a sliding object to slow down
the earths gravity
what device is commanly used to mesure force
newtons gauge or spring scale
components
parts of a system
mehanical system
group of parts that interact with each other and function as a whole to do something
force
a push or pull that act on an object
contact forces
any force that occurs as a result of two objects making contact with each other
friction
a force that opposes the relitave
action at a distance
forces that can push or pull objects without touch them at all
