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Worksheetsunit 8 section 3.1 part II-A
Total questions: 26
Worksheet time: 16mins
an attractive force between any two objects that depends on the masses of the objects and the distance between them
gravity
weight
freefall
terminal velocity
a measure of the gravitational force exerted on an object
gravity
weight
freefall
terminal velocity
when air resistance and weight (force of gravity) are equal, the object stops accelerating and reaches its maximum velocity
gravity
weight
freefall
terminal velocity
in the absence of air resistance, all objects falling near earth's surface accelerate at the same rate regrdless of their mass
gravity
weight
freefall
terminal velocity
gravity acts on all objects with ____
weight
mass
9.8 m/s2 acceleration
acceleration
what equation summarizes the universal law of gravitation?
w = mg
Fg = m1m2/d2
___ objects in the universse attract each other through the force of gravity
all
no
the gravitational force ___________ proportionally as one/both masses increase
decreases
increases
where would you weigh less: at sea level or at the top of a tall mountain?
sea level
mountain
if mass increases, the force of gravity
increases
decreases
if distance increases, the force of gravity
increases
decreases
(when using mass) to find the force, ____ the mass
divide
subtract
add
multiply
(when using distance) to find the force, ____ the distance and take the _____
half; whole number
square; reciprocal
square; whole number
half; reciprocal
acceleration due to gravity on earth
(a)
weight is a _____ quantity
scalar
vector
formula for weight
(a)
mass ____ affected by gravity
is
is not
free fall acceleration for an object is directed toward the _____ of the earth
1 pound = (a) N
acceleration remains ______ for the entire freefall
different
constant
as an object falls, the distance traveled _______ each second
increases
decreases
when an object reaches terminal velocity, both forces are ______ and the object _______.
balanced
unbalanced
accelerates
no longer accelerates
air resistance acts on falling objects in the opposite direction of their motion _______.
sideways
upwards
downwards
air resistance =
(a)
objects with ______ surface area experience more air resistance.
larger
smaller
the amount of air resistance that affects the object depends on the ___________, _________, and ________
(a)
