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Summary Physics – OAT questions and answers
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Physics – OAT questions and answers
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Physics – OAT questions and answersmeter - What is the SI unit for length?
kilogram - What is the SI unit for mass?
newton - What is the SI unit for force?
second - What is the SI unit for time?
joule - What is the SI unit for work/energy?
watt - What is the SI unit for power
10E-1o m - What is the value of one angstrom?
1.6E-19 J - How much does 1 electron volt equal
scalar - numerical quantities that have magnitude but no direction
vector - quantities that have both magnitude and direction?
,Physics – OAT questions and answers
kinematics - branch of mechanics dealing with the description of motion
position - defined on a three-dimensional coordinate axis
displacement - vector quantity that describes the change in the position of the
object
average velocity - the ratio of the displacement vector over the change in time
instantaneous velocity - the velocity at a single time; average velocity as t
approches 0... it is the slope of the line of the position versus time graph
average speed - distances/elasped time = ?
acceleration - the rate of change of an object's velocity
average acceleration - the change in instantaneous velocity over time period t
instantaneous acceleration - the acceleration at one point of a particles path
,Physics – OAT questions and answers
vf = vi +at - VAT equation
xf-xi = vit + 1/2at^2 - Given, initial and final displacement , initial velocity,
acceleration, and time
vf= vi^2 + 2a(xf - xi) - VAX equation
delta x = 1/2 (vf + vi)(t) - initial and final displacement/velocity and time are
known
(kilogram x meter)/second^2 - What is the equivalent unit for force (beside
Newton)?
W=mg - What is the formula for weight?
F=ma - Force equation
F=Gm1m2/r^2 - Gravitational force equation
, Physics – OAT questions and answers
6.67E-11 - Gravitational constant
translational equilibrium - the sum of forces pushing the object through space in
one direction must be counterbalanced by the sum of the forces acting in the
opposite direction
t = rFsin theta - torque equation
Newton's first law - a body in rest will stay at rest and a body in motion will stay in
motion
Newton's second law - A net force applied to a body of mass m will result in that
body undergoing acceleration in the same direction as the net force
Newton's third law - every action has an equal but opposite reaction
0 less than/equal to fs less than/equal to coefficient of static friction x normal
force - equation of static friction
fk = coefficent of kinetic friction x N - equation of kinetic friction
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