mechanics Flashcards
define boyles law
the pressure of a volume of a gas is constant where temperature is constant
what is pressure due to liquid called
hydrostatic pressure
define archimedes principle
when an object is partially or fully immersed in fluid it experiences an upthrust equal to the amount of fluid it displaces
how to demonstrate atmospheric pressure?
hor to demonstrate archimedes law?
what is the law of flotation
weight of water displaced will equal weight of object
in conservation of momentum experiments, why should initial velocity be constant
to reduce external forces on acceleration being observed
in conservation of momentum experiments, how do you ensure initial velocity is constant
measure initial velocity of one object with ticker timer and see if spaces are equal
how to find centre of gravity on a metre stick
balance on fulcrum until still
how to find weight of metre stick
meadure on electronic balance and then multiply by gravitational constant
in experiment to meadure acceleration due to gravity, what does the graph look like
time squared on x-axis and distance on y-axis
in experiment to meadure acceleration due to gravity, how do you find g from graph
multiply slope by 2
in equilibrium of two co-planar forces, what is the advantage of metre stick being horizontal
trigonometry not needed
what is newtons second law of motion
the rate of change of a bodies momentum is proportionial to the net force applied and will act in the diraction of the force
